diff --git a/src/NzbDrone.Core.Test/IndexerSearchTests/IndexerRawSearchDefinitionBuilderFixture.cs b/src/NzbDrone.Core.Test/IndexerSearchTests/IndexerRawSearchDefinitionBuilderFixture.cs
new file mode 100644
index 000000000..f16c67a99
--- /dev/null
+++ b/src/NzbDrone.Core.Test/IndexerSearchTests/IndexerRawSearchDefinitionBuilderFixture.cs
@@ -0,0 +1,101 @@
+using System;
+using System.Collections.Generic;
+using FluentAssertions;
+using NUnit.Framework;
+using NzbDrone.Core.Indexers;
+using NzbDrone.Core.IndexerSearch;
+using NzbDrone.Core.Indexers.Definitions.Cardigann;
+using NzbDrone.Core.Indexers.Settings;
+
+namespace NzbDrone.Core.Test.IndexerSearchTests
+{
+    public class IndexerRawSearchDefinitionBuilderFixture
+    {
+        [Test]
+        public void should_reset_known_search_constraints_on_cloned_settings()
+        {
+            var original = new IndexerDefinition
+            {
+                Id = 1,
+                Name = "test",
+                Implementation = "TestIndexer",
+                Settings = new TestIndexerSettings
+                {
+                    BaseUrl = "https://tracker.example",
+                    FreeleechOnly = true,
+                    UseFreeleechToken = 2,
+                    LimitedOnly = true,
+                    SearchTypes = new[] { 1, 2 },
+                    BaseSettings = new IndexerBaseSettings { QueryLimit = 42 }
+                }
+            };
+
+            var clone = IndexerRawSearchDefinitionBuilder.Build(original);
+            var cloneSettings = (TestIndexerSettings)clone.Settings;
+            var originalSettings = (TestIndexerSettings)original.Settings;
+
+            cloneSettings.FreeleechOnly.Should().BeFalse();
+            cloneSettings.UseFreeleechToken.Should().Be(0);
+            cloneSettings.LimitedOnly.Should().BeFalse();
+            cloneSettings.SearchTypes.Should().BeEmpty();
+            cloneSettings.BaseSettings.QueryLimit.Should().Be(42);
+
+            originalSettings.FreeleechOnly.Should().BeTrue();
+            originalSettings.UseFreeleechToken.Should().Be(2);
+            originalSettings.LimitedOnly.Should().BeTrue();
+            originalSettings.SearchTypes.Should().Equal(1, 2);
+        }
+
+        [Test]
+        public void should_reset_known_cardigann_search_constraint_fields()
+        {
+            var original = new IndexerDefinition
+            {
+                Id = 2,
+                Name = "cardigann-test",
+                Implementation = "Cardigann",
+                Settings = new CardigannSettings
+                {
+                    DefinitionFile = "test.yml",
+                    BaseUrl = "https://tracker.example",
+                    ExtraFieldData = new Dictionary<string, object>
+                    {
+                        ["freeleech"] = true,
+                        ["useFreeleechToken"] = 2,
+                        ["someOtherField"] = "keep"
+                    }
+                },
+                ExtraFields = new List<SettingsField>
+                {
+                    new() { Name = "freeleech", Type = "checkbox", Label = "Freeleech only", Default = "false" },
+                    new() { Name = "useFreeleechToken", Type = "select", Label = "Use freeleech token", Default = "0" },
+                    new() { Name = "someOtherField", Type = "text", Label = "Other field" }
+                }
+            };
+
+            var clone = IndexerRawSearchDefinitionBuilder.Build(original);
+            var cloneSettings = (CardigannSettings)clone.Settings;
+            var originalSettings = (CardigannSettings)original.Settings;
+
+            cloneSettings.ExtraFieldData["freeleech"].Should().Be(false);
+            cloneSettings.ExtraFieldData["useFreeleechToken"].Should().Be(0);
+            cloneSettings.ExtraFieldData["someOtherField"].Should().Be("keep");
+
+            originalSettings.ExtraFieldData["freeleech"].Should().Be(true);
+            originalSettings.ExtraFieldData["useFreeleechToken"].Should().Be(2);
+        }
+
+        private class TestIndexerSettings : NoAuthTorrentBaseSettings
+        {
+            public bool FreeleechOnly { get; set; }
+
+            public int UseFreeleechToken { get; set; }
+
+            [SearchConstraint(SearchConstraintResetBehavior.False)]
+            public bool LimitedOnly { get; set; }
+
+            [SearchConstraint]
+            public IEnumerable<int> SearchTypes { get; set; } = Array.Empty<int>();
+        }
+    }
+}
diff --git a/src/NzbDrone.Core.Test/IndexerSearchTests/ReleaseSearchServiceFixture.cs b/src/NzbDrone.Core.Test/IndexerSearchTests/ReleaseSearchServiceFixture.cs
index e67fda3f3..d286a8c7c 100644
--- a/src/NzbDrone.Core.Test/IndexerSearchTests/ReleaseSearchServiceFixture.cs
+++ b/src/NzbDrone.Core.Test/IndexerSearchTests/ReleaseSearchServiceFixture.cs
@@ -5,6 +5,7 @@
 using Moq;
 using NUnit.Framework;
 using NzbDrone.Core.Indexers;
+using NzbDrone.Core.Indexers.Definitions;
 using NzbDrone.Core.IndexerSearch;
 using NzbDrone.Core.IndexerSearch.Definitions;
 using NzbDrone.Core.Test.Framework;
@@ -87,5 +88,61 @@ public void should_normalize_imdbid_tv_search_criteria(string input, string expe
             criteria.Count.Should().Be(1);
             criteria[0].ImdbId.Should().Be(expected);
         }
+
+        [Test]
+        public void should_clone_indexer_definition_for_raw_search_mode()
+        {
+            var originalDefinition = new IndexerDefinition
+            {
+                Id = 1,
+                Name = "BeyondHD",
+                Implementation = nameof(BeyondHD),
+                Settings = new BeyondHDSettings
+                {
+                    BaseUrl = "https://tracker.example",
+                    FreeleechOnly = true,
+                    LimitedOnly = true,
+                    RefundOnly = true,
+                    RewindOnly = true,
+                    SearchTypes = new[] { (int)BeyondHDSearchType.TypeUhd100 }
+                }
+            };
+
+            _mockIndexer.SetupGet(s => s.Definition).Returns(originalDefinition);
+
+            IndexerDefinition rawDefinition = null;
+
+            Mocker.GetMock<IIndexerFactory>()
+                .Setup(s => s.GetInstance(It.IsAny<IndexerDefinition>()))
+                .Callback<IndexerDefinition>(definition => rawDefinition = definition)
+                .Returns(_mockIndexer.Object);
+
+            var request = new NewznabRequest
+            {
+                t = "movie",
+                searchMode = "raw"
+            };
+
+            Subject.Search(request, new List<int> { 1 }, false).GetAwaiter().GetResult();
+
+            rawDefinition.Should().NotBeNull();
+            rawDefinition.Should().NotBeSameAs(originalDefinition);
+            rawDefinition.Settings.Should().NotBeSameAs(originalDefinition.Settings);
+
+            var rawSettings = (BeyondHDSettings)rawDefinition.Settings;
+            var originalSettings = (BeyondHDSettings)originalDefinition.Settings;
+
+            rawSettings.FreeleechOnly.Should().BeFalse();
+            rawSettings.LimitedOnly.Should().BeFalse();
+            rawSettings.RefundOnly.Should().BeFalse();
+            rawSettings.RewindOnly.Should().BeFalse();
+            rawSettings.SearchTypes.Should().BeEmpty();
+
+            originalSettings.FreeleechOnly.Should().BeTrue();
+            originalSettings.LimitedOnly.Should().BeTrue();
+            originalSettings.RefundOnly.Should().BeTrue();
+            originalSettings.RewindOnly.Should().BeTrue();
+            originalSettings.SearchTypes.Should().ContainSingle().Which.Should().Be((int)BeyondHDSearchType.TypeUhd100);
+        }
     }
 }
diff --git a/src/NzbDrone.Core/IndexerSearch/Definitions/SearchCriteriaBase.cs b/src/NzbDrone.Core/IndexerSearch/Definitions/SearchCriteriaBase.cs
index 15c4aa35b..76a239533 100644
--- a/src/NzbDrone.Core/IndexerSearch/Definitions/SearchCriteriaBase.cs
+++ b/src/NzbDrone.Core/IndexerSearch/Definitions/SearchCriteriaBase.cs
@@ -23,6 +23,7 @@ public abstract class SearchCriteriaBase
         public long? MaxSize { get; set; }
         public string Source { get; set; }
         public string Host { get; set; }
+        public IndexerSearchMode SearchMode { get; set; }
 
         public override string ToString() => $"{SearchQuery}, Offset: {Offset ?? 0}, Limit: {Limit ?? 0}, Categories: [{string.Join(", ", Categories)}]";
 
diff --git a/src/NzbDrone.Core/IndexerSearch/IndexerRawSearchDefinitionBuilder.cs b/src/NzbDrone.Core/IndexerSearch/IndexerRawSearchDefinitionBuilder.cs
new file mode 100644
index 000000000..3033298f0
--- /dev/null
+++ b/src/NzbDrone.Core/IndexerSearch/IndexerRawSearchDefinitionBuilder.cs
@@ -0,0 +1,239 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using Newtonsoft.Json;
+using NzbDrone.Common.Extensions;
+using NzbDrone.Core.Indexers;
+using NzbDrone.Core.Indexers.Definitions.Cardigann;
+using NzbDrone.Core.ThingiProvider;
+
+namespace NzbDrone.Core.IndexerSearch
+{
+    internal static class IndexerRawSearchDefinitionBuilder
+    {
+        public static IndexerDefinition Build(IndexerDefinition definition)
+        {
+            if (definition?.Settings == null)
+            {
+                return definition;
+            }
+
+            var clonedSettings = CloneSettings(definition.Settings);
+            ApplyConstraintOverrides(clonedSettings);
+
+            var clonedDefinition = CloneDefinition(definition, clonedSettings);
+
+            if (clonedSettings is CardigannSettings cardigannSettings)
+            {
+                ApplyCardigannOverrides(cardigannSettings, clonedDefinition.ExtraFields);
+            }
+
+            return clonedDefinition;
+        }
+
+        private static IProviderConfig CloneSettings(IProviderConfig settings)
+        {
+            var serialized = JsonConvert.SerializeObject(settings);
+            return (IProviderConfig)JsonConvert.DeserializeObject(serialized, settings.GetType());
+        }
+
+        private static IndexerDefinition CloneDefinition(IndexerDefinition definition, IProviderConfig settings)
+        {
+            return new IndexerDefinition
+            {
+                Id = definition.Id,
+                Name = definition.Name,
+                ImplementationName = definition.ImplementationName,
+                Implementation = definition.Implementation,
+                ConfigContract = definition.ConfigContract,
+                Enable = definition.Enable,
+                Message = definition.Message,
+                Tags = definition.Tags != null ? new HashSet<int>(definition.Tags) : new HashSet<int>(),
+                Settings = settings,
+                IndexerUrls = definition.IndexerUrls,
+                LegacyUrls = definition.LegacyUrls,
+                Description = definition.Description,
+                Encoding = definition.Encoding,
+                Language = definition.Language,
+                Protocol = definition.Protocol,
+                Privacy = definition.Privacy,
+                SupportsRss = definition.SupportsRss,
+                SupportsSearch = definition.SupportsSearch,
+                SupportsRedirect = definition.SupportsRedirect,
+                SupportsPagination = definition.SupportsPagination,
+                Capabilities = definition.Capabilities,
+                Priority = definition.Priority,
+                Redirect = definition.Redirect,
+                DownloadClientId = definition.DownloadClientId,
+                Added = definition.Added,
+                AppProfileId = definition.AppProfileId,
+                AppProfile = definition.AppProfile,
+                ExtraFields = definition.ExtraFields?.Select(CloneExtraField).ToList() ?? new List<SettingsField>()
+            };
+        }
+
+        private static SettingsField CloneExtraField(SettingsField field)
+        {
+            return new SettingsField
+            {
+                Name = field.Name,
+                Type = field.Type,
+                Label = field.Label,
+                Default = field.Default,
+                Defaults = field.Defaults?.ToArray(),
+                Options = field.Options != null ? new Dictionary<string, string>(field.Options) : null
+            };
+        }
+
+        private static void ApplyConstraintOverrides(object target)
+        {
+            if (target == null)
+            {
+                return;
+            }
+
+            var targetType = target.GetType();
+            object defaults = null;
+
+            try
+            {
+                defaults = Activator.CreateInstance(targetType);
+            }
+            catch
+            {
+                // Best-effort only. If a type cannot be constructed we can still apply explicit false/null resets.
+            }
+
+            foreach (var property in targetType.GetProperties(BindingFlags.Instance | BindingFlags.Public))
+            {
+                if (!property.CanRead || !property.CanWrite || property.GetIndexParameters().Length > 0)
+                {
+                    continue;
+                }
+
+                var currentValue = property.GetValue(target);
+                var defaultValue = defaults != null ? property.GetValue(defaults) : null;
+
+                if (TryGetResetBehavior(property, out var resetBehavior))
+                {
+                    property.SetValue(target, BuildResetValue(property.PropertyType, resetBehavior, defaultValue));
+                    continue;
+                }
+
+                if (ShouldRecurse(property.PropertyType, currentValue))
+                {
+                    ApplyConstraintOverrides(currentValue);
+                }
+            }
+        }
+
+        private static bool TryGetResetBehavior(PropertyInfo property, out SearchConstraintResetBehavior resetBehavior)
+        {
+            var explicitAttribute = property.GetCustomAttribute<SearchConstraintAttribute>();
+            if (explicitAttribute != null)
+            {
+                resetBehavior = explicitAttribute.ResetBehavior;
+                return true;
+            }
+
+            if (property.Name.EndsWith("Only", StringComparison.OrdinalIgnoreCase))
+            {
+                resetBehavior = property.PropertyType == typeof(bool) || property.PropertyType == typeof(bool?)
+                    ? SearchConstraintResetBehavior.False
+                    : SearchConstraintResetBehavior.Default;
+                return true;
+            }
+
+            if (property.Name.Contains("UseFreeleechToken", StringComparison.OrdinalIgnoreCase))
+            {
+                resetBehavior = SearchConstraintResetBehavior.Default;
+                return true;
+            }
+
+            resetBehavior = default;
+            return false;
+        }
+
+        private static object BuildResetValue(Type propertyType, SearchConstraintResetBehavior resetBehavior, object defaultValue)
+        {
+            return resetBehavior switch
+            {
+                SearchConstraintResetBehavior.False when propertyType == typeof(bool?) => (bool?)false,
+                SearchConstraintResetBehavior.False => false,
+                SearchConstraintResetBehavior.Empty => string.Empty,
+                SearchConstraintResetBehavior.Null => null,
+                _ => defaultValue ?? (propertyType.IsValueType ? Activator.CreateInstance(propertyType) : null)
+            };
+        }
+
+        private static bool ShouldRecurse(Type propertyType, object currentValue)
+        {
+            if (currentValue == null || propertyType == typeof(string))
+            {
+                return false;
+            }
+
+            if (typeof(IDictionary).IsAssignableFrom(propertyType) || typeof(IEnumerable).IsAssignableFrom(propertyType))
+            {
+                return false;
+            }
+
+            return propertyType.IsClass;
+        }
+
+        private static void ApplyCardigannOverrides(CardigannSettings settings, List<SettingsField> extraFields)
+        {
+            if (settings.ExtraFieldData == null || extraFields == null)
+            {
+                return;
+            }
+
+            foreach (var field in extraFields)
+            {
+                if (!ShouldResetCardigannField(field))
+                {
+                    continue;
+                }
+
+                settings.ExtraFieldData[field.Name] = GetCardigannResetValue(field);
+            }
+        }
+
+        private static bool ShouldResetCardigannField(SettingsField field)
+        {
+            var combined = $"{field.Name} {field.Label}".ToLowerInvariant();
+
+            return combined.Contains("freeleech") ||
+                   combined.Contains("freeload") ||
+                   combined.Contains("limited") ||
+                   (combined.Contains("token") && combined.Contains("free"));
+        }
+
+        private static object GetCardigannResetValue(SettingsField field)
+        {
+            if (string.Equals(field.Type, "checkbox", StringComparison.OrdinalIgnoreCase))
+            {
+                return false;
+            }
+
+            if (field.Default.IsNotNullOrWhiteSpace())
+            {
+                if (int.TryParse(field.Default, out var number))
+                {
+                    return number;
+                }
+
+                if (bool.TryParse(field.Default, out var boolean))
+                {
+                    return boolean;
+                }
+
+                return field.Default;
+            }
+
+            return string.Equals(field.Type, "select", StringComparison.OrdinalIgnoreCase) ? string.Empty : null;
+        }
+    }
+}
diff --git a/src/NzbDrone.Core/IndexerSearch/IndexerSearchMode.cs b/src/NzbDrone.Core/IndexerSearch/IndexerSearchMode.cs
new file mode 100644
index 000000000..7be554743
--- /dev/null
+++ b/src/NzbDrone.Core/IndexerSearch/IndexerSearchMode.cs
@@ -0,0 +1,29 @@
+using NzbDrone.Common.Extensions;
+
+namespace NzbDrone.Core.IndexerSearch
+{
+    public enum IndexerSearchMode
+    {
+        Default = 0,
+        Raw = 1
+    }
+
+    public static class IndexerSearchModeParser
+    {
+        public static IndexerSearchMode Parse(string value)
+        {
+            if (value.IsNullOrWhiteSpace())
+            {
+                return IndexerSearchMode.Default;
+            }
+
+            return value.Trim().ToLowerInvariant() switch
+            {
+                "raw" => IndexerSearchMode.Raw,
+                "normal" => IndexerSearchMode.Default,
+                "default" => IndexerSearchMode.Default,
+                _ => IndexerSearchMode.Default
+            };
+        }
+    }
+}
diff --git a/src/NzbDrone.Core/IndexerSearch/NewznabRequest.cs b/src/NzbDrone.Core/IndexerSearch/NewznabRequest.cs
index 63ade87b5..747aa7e25 100644
--- a/src/NzbDrone.Core/IndexerSearch/NewznabRequest.cs
+++ b/src/NzbDrone.Core/IndexerSearch/NewznabRequest.cs
@@ -42,6 +42,7 @@ public class NewznabRequest
         public string source { get; set; }
         public string host { get; set; }
         public string server { get; set; }
+        public string searchMode { get; set; }
 
         public void QueryToParams()
         {
diff --git a/src/NzbDrone.Core/IndexerSearch/ReleaseSearchService.cs b/src/NzbDrone.Core/IndexerSearch/ReleaseSearchService.cs
index 4d5fbd5d3..26e4b7214 100644
--- a/src/NzbDrone.Core/IndexerSearch/ReleaseSearchService.cs
+++ b/src/NzbDrone.Core/IndexerSearch/ReleaseSearchService.cs
@@ -150,6 +150,7 @@ private TSpec Get<TSpec>(NewznabRequest query, List<int> indexerIds, bool intera
             spec.MaxSize = query.maxsize;
             spec.Source = query.source;
             spec.Host = query.host;
+            spec.SearchMode = IndexerSearchModeParser.Parse(query.searchMode);
 
             spec.IndexerIds = indexerIds;
 
@@ -175,6 +176,11 @@ private async Task<IList<ReleaseInfo>> Dispatch(Func<IIndexer, Task<IndexerPagea
                 }
             }
 
+            if (criteriaBase.SearchMode == IndexerSearchMode.Raw)
+            {
+                indexers = indexers.Select(CreateRawSearchIndexer).ToList();
+            }
+
             if (criteriaBase.Categories is { Length: > 0 })
             {
                 // Only query supported indexers
@@ -201,6 +207,17 @@ private async Task<IList<ReleaseInfo>> Dispatch(Func<IIndexer, Task<IndexerPagea
             return reports;
         }
 
+        private IIndexer CreateRawSearchIndexer(IIndexer indexer)
+        {
+            if (indexer.Definition is not IndexerDefinition definition)
+            {
+                return indexer;
+            }
+
+            var rawDefinition = IndexerRawSearchDefinitionBuilder.Build(definition);
+            return _indexerFactory.GetInstance(rawDefinition);
+        }
+
         private async Task<IList<ReleaseInfo>> DispatchIndexer(Func<IIndexer, Task<IndexerPageableQueryResult>> searchAction, IIndexer indexer, SearchCriteriaBase criteriaBase)
         {
             if (_indexerLimitService.AtQueryLimit((IndexerDefinition)indexer.Definition))
diff --git a/src/NzbDrone.Core/Indexers/Definitions/BeyondHD.cs b/src/NzbDrone.Core/Indexers/Definitions/BeyondHD.cs
index 32de3f977..95a363b43 100644
--- a/src/NzbDrone.Core/Indexers/Definitions/BeyondHD.cs
+++ b/src/NzbDrone.Core/Indexers/Definitions/BeyondHD.cs
@@ -389,6 +389,7 @@ public BeyondHDSettings()
         [FieldDefinition(7, Label = "IndexerBeyondHDSettingsRewindOnly", Type = FieldType.Checkbox, HelpText = "IndexerBeyondHDSettingsRewindOnlyHelpText")]
         public bool RewindOnly { get; set; }
 
+        [SearchConstraint]
         [FieldDefinition(8, Label = "IndexerBeyondHDSettingsSearchTypes", Type = FieldType.Select, SelectOptions = typeof(BeyondHDSearchType), HelpText = "IndexerBeyondHDSettingsSearchTypesHelpText", Advanced = true)]
         public IEnumerable<int> SearchTypes { get; set; }
 
diff --git a/src/NzbDrone.Core/Indexers/Definitions/TorrentSyndikat.cs b/src/NzbDrone.Core/Indexers/Definitions/TorrentSyndikat.cs
index a986c7291..24ead0040 100644
--- a/src/NzbDrone.Core/Indexers/Definitions/TorrentSyndikat.cs
+++ b/src/NzbDrone.Core/Indexers/Definitions/TorrentSyndikat.cs
@@ -342,6 +342,7 @@ public TorrentSyndikatSettings()
         [FieldDefinition(3, Label = "Products Only", Type = FieldType.Checkbox, HelpText = "Limit search to torrents linked to a product")]
         public bool ProductsOnly { get; set; }
 
+        [SearchConstraint]
         [FieldDefinition(4, Label = "Release Types", Type = FieldType.Select, SelectOptions = typeof(TorrentSyndikatReleaseTypes))]
         public IEnumerable<int> ReleaseTypes { get; set; }
 
diff --git a/src/NzbDrone.Core/Indexers/SearchConstraintAttribute.cs b/src/NzbDrone.Core/Indexers/SearchConstraintAttribute.cs
new file mode 100644
index 000000000..9234442a0
--- /dev/null
+++ b/src/NzbDrone.Core/Indexers/SearchConstraintAttribute.cs
@@ -0,0 +1,23 @@
+using System;
+
+namespace NzbDrone.Core.Indexers
+{
+    [AttributeUsage(AttributeTargets.Property, AllowMultiple = false)]
+    public sealed class SearchConstraintAttribute : Attribute
+    {
+        public SearchConstraintAttribute(SearchConstraintResetBehavior resetBehavior = SearchConstraintResetBehavior.Default)
+        {
+            ResetBehavior = resetBehavior;
+        }
+
+        public SearchConstraintResetBehavior ResetBehavior { get; }
+    }
+
+    public enum SearchConstraintResetBehavior
+    {
+        Default,
+        False,
+        Empty,
+        Null
+    }
+}
diff --git a/src/Prowlarr.Api.V1.Test/Indexers/NewznabControllerFixture.cs b/src/Prowlarr.Api.V1.Test/Indexers/NewznabControllerFixture.cs
new file mode 100644
index 000000000..34974476c
--- /dev/null
+++ b/src/Prowlarr.Api.V1.Test/Indexers/NewznabControllerFixture.cs
@@ -0,0 +1,18 @@
+using FluentAssertions;
+using Microsoft.AspNetCore.Http;
+using NUnit.Framework;
+using NzbDrone.Api.V1.Indexers;
+
+namespace Prowlarr.Api.V1.Test.Indexers
+{
+    public class NewznabControllerFixture
+    {
+        [TestCase("/api/v1/indexer/12/newznab", true)]
+        [TestCase("/12/api", false)]
+        [TestCase("/api/v1/indexer/12/download", false)]
+        public void should_only_allow_extended_search_parameters_on_prowlarr_newznab_route(string path, bool expected)
+        {
+            NewznabController.SupportsExtendedSearchParameters(new PathString(path)).Should().Be(expected);
+        }
+    }
+}
diff --git a/src/Prowlarr.Api.V1.Test/Prowlarr.Api.V1.Test.csproj b/src/Prowlarr.Api.V1.Test/Prowlarr.Api.V1.Test.csproj
index eec930286..72a865158 100644
--- a/src/Prowlarr.Api.V1.Test/Prowlarr.Api.V1.Test.csproj
+++ b/src/Prowlarr.Api.V1.Test/Prowlarr.Api.V1.Test.csproj
@@ -7,6 +7,7 @@
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\NzbDrone.Core\Prowlarr.Core.csproj" />
+    <ProjectReference Include="..\Prowlarr.Api.V1\Prowlarr.Api.V1.csproj" />
     <ProjectReference Include="..\NzbDrone.Test.Common\Prowlarr.Test.Common.csproj" />
     <ProjectReference Include="..\Prowlarr.Http\Prowlarr.Http.csproj" />
   </ItemGroup>
diff --git a/src/Prowlarr.Api.V1/AssemblyInfo.cs b/src/Prowlarr.Api.V1/AssemblyInfo.cs
new file mode 100644
index 000000000..59dc537b5
--- /dev/null
+++ b/src/Prowlarr.Api.V1/AssemblyInfo.cs
@@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("Prowlarr.Api.V1.Test")]
diff --git a/src/Prowlarr.Api.V1/Indexers/NewznabController.cs b/src/Prowlarr.Api.V1/Indexers/NewznabController.cs
index cde49b789..82b0b1353 100644
--- a/src/Prowlarr.Api.V1/Indexers/NewznabController.cs
+++ b/src/Prowlarr.Api.V1/Indexers/NewznabController.cs
@@ -58,6 +58,11 @@ public NewznabController(IndexerFactory indexerFactory,
         [HttpGet("{id:int}/api")]
         public async Task<IActionResult> GetNewznabResponse(int id, [FromQuery] NewznabRequest request)
         {
+            if (!SupportsExtendedSearchParameters(Request.Path))
+            {
+                request.searchMode = null;
+            }
+
             var requestType = request.t;
             request.source = Request.GetSource();
             request.server = Request.GetServerUrl();
@@ -206,6 +211,12 @@ public async Task<IActionResult> GetNewznabResponse(int id, [FromQuery] NewznabR
             }
         }
 
+        internal static bool SupportsExtendedSearchParameters(PathString path)
+        {
+            return path.Value?.StartsWith("/api/v1/indexer/", StringComparison.OrdinalIgnoreCase) == true &&
+                   path.Value.EndsWith("/newznab", StringComparison.OrdinalIgnoreCase);
+        }
+
         [HttpGet("/api/v1/indexer/{id:int}/download")]
         [HttpGet("{id:int}/download")]
         public async Task<object> GetDownload(int id, string link, string file)
diff --git a/src/Prowlarr.Api.V1/Search/SearchController.cs b/src/Prowlarr.Api.V1/Search/SearchController.cs
index c73ae00f3..123ed1dc7 100644
--- a/src/Prowlarr.Api.V1/Search/SearchController.cs
+++ b/src/Prowlarr.Api.V1/Search/SearchController.cs
@@ -163,6 +163,7 @@ private async Task<List<ReleaseResource>> GetSearchReleases([FromQuery] SearchRe
                     cat = string.Join(",", payload.Categories),
                     server = Request.GetServerUrl(),
                     host = Request.GetHostName(),
+                    searchMode = payload.SearchMode,
                     limit = payload.Limit,
                     offset = payload.Offset
                 };
diff --git a/src/Prowlarr.Api.V1/Search/SearchResource.cs b/src/Prowlarr.Api.V1/Search/SearchResource.cs
index 2c6531ade..ecdbedee7 100644
--- a/src/Prowlarr.Api.V1/Search/SearchResource.cs
+++ b/src/Prowlarr.Api.V1/Search/SearchResource.cs
@@ -12,6 +12,7 @@ public SearchResource()
 
         public string Query { get; set; }
         public string Type { get; set; }
+        public string SearchMode { get; set; }
         public List<int> IndexerIds { get; set; }
         public List<int> Categories { get; set; }
         public int? Limit { get; set; }