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The Torque Solution TS-SU-518 is the #1 selling unbreakable clutch fork for every manual-transmission Subaru WRX and STI from 2006–2025. CNC-machined from 4140 chromoly steel and black oxide coated, this fork eliminates the weak factory stamped-steel piece that bends or snaps under hard launches, upgraded clutches, or track abuse. Direct drop-in replacement the ultimate insurance policy for any built-trans or high-power EJ/FA20 6MT.
| Specification | Detail |
|---|---|
| Part Number | TS-SU-518 |
| Material | 4140 chromoly steel |
| Finish | Black oxide |
| Weight vs OEM | Slightly heavier (stronger) |
| Country of Origin | United States |
| Warranty | Lifetime against bending/breaking |
| Year | Make | Model | Trans | |
|---|---|---|---|---|
| 2006–2014 | Subaru | Impreza WRX | 6MT | |
| 2015–2025 | Subaru | WRX | 6MT | |
| 2004–2021 | Subaru | WRX STI | 6MT |
A performance clutch system is one of the most impactful drivetrain upgrades available for any manual transmission vehicle. From street-friendly organic disc kits to heavy-duty ceramic setups built for drag racing and track use, matching the right clutch components to your power level and driving style keeps engagement consistent and power transfer reliable.Popular UpgradesStage 1 and Stage 2 clutch kits with upgraded pressure plates and organic or hybrid friction discs are the most popular choice for street builds making 300 to 500 horsepower. Stage 3 and Stage 4 ceramic or Kevlar disc setups handle the demands of forced induction or high-compression builds. Lightweight aluminum flywheels paired with upgraded clutch kits improve rev response and make gear changes faster on both street and track applications.What clutch stage do I need for my build?Stage 1 clutches are rated for lightly modified street engines up to about 350 horsepower. Stage 2 kits cover 350 to 500 horsepower with...
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The clutch fork, also called the clutch release arm or throwout bearing fork, pivots on a ball stud to push the release bearing against the pressure plate fingers when the clutch pedal is depressed. It is a high-wear item on performance builds and should be inspected any time the transmission is out for a clutch job.Popular UpgradesHeavy-duty steel clutch forks are the top upgrade for high-torque applications where OEM stamped-steel forks are prone to bending or cracking under repeated aggressive use. Ball stud and pivot socket upgrades in hardened steel extend the service life of the clutch fork pivot point, which is a common wear location on high-mileage clutch systems. For hydraulic clutch conversions, fork-delete bearing retainer kits that replace the fork entirely are available for several popular platforms.What causes a clutch fork to fail?Clutch fork failures are most commonly caused by metal fatigue from repeated high-load engagement cycles on high-output builds, worn pivot ...
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Shop drivetrain parts and accessories at Black Ops Auto Works for differentials, axles, driveshafts, clutch kits, flywheels, flexplates, shifters, transmission components, ring and pinion gears, differential braces, differential bushings, wheel hubs, wheel bearings, U-joints, valve bodies, transmission coolers, drivetrain mounts, and performance driveline upgrades. This collection is built for street cars, drag cars, track builds, trucks, Jeeps, SUVs, high-horsepower Mopar builds, imports, European performance vehicles, and off-road applications that need stronger power delivery, durability, and reliability. Use this Drivetrain collection to find the right upgrade by vehicle platform, drivetrain layout, transmission type, power level, and product category. Differentials and ring and pinion gears support traction and gearing changes, axles and driveshafts help transfer power, clutch kits and flywheels improve manual transmission performance, transmission coolers and valve bodies supp...
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Welcome to the Torque Solution collection, where we specialize in high-performance products engineered to enhance your vehicle's engine performance and reliability. Our curated selection is designed for enthusiasts who demand the best in torque management and efficiency. Why Choose Torque Solution Products? Performance Enhancement: Boost your engine's power and efficiency. Durability: Crafted from high-quality materials to withstand extreme conditions. Precision Engineering: Designed for a perfect fit and optimal function. Expert Support: Our team is here to assist you with any questions and guidance. Featured Products in the Torque Solution Collection Torque Solution Engine Mounts Torque Solution Boost Controllers Torque Solution Turbo Kits Torque Solution Performance Exhausts Experience the Torque Solution Difference Upgrading your vehicle with our Torque Solution products means you are investing in quality and performance. Whether you're on the track or just driving...
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