SPEC Carbon ST-Trim Twin Clutch Kit

2008–2023 Dodge Challenger SRT8 6.1L & 2009–2022 Dodge Challenger R/T 5.7L HEMI

SD80ST

Overview:

The SPEC Carbon ST-Trim Twin Clutch Kit is a high-performance upgrade designed specifically for Dodge Challenger models equipped with the 5.7L and 6.1L HEMI engines. Engineered to replace the OEM clutch, this twin clutch kit delivers exceptional torque capacity and enhanced drivability, making it an ideal choice for enthusiasts seeking improved launch performance without sacrificing street comfort.

Whether you are into street driving, drag racing, or drifting, this clutch kit offers a perfect balance of race-proven technology and daily usability. It provides increased clamping force and torque handling capabilities up to 1,260 ft/lbs, enabling quicker launches and better power transfer while maintaining smooth engagement and minimal noise.

Key Features:

Built to meet the demands of high-performance driving, the SPEC Carbon ST-Trim Twin Clutch Kit includes the following key features:

• Fully faced carbon fiber friction disks for superior heat resistance and durability
• Torque capacity rated at 1,260 ft/lbs to handle high horsepower and torque outputs
• ST Trim design for optimized engagement and reduced chatter
• Precision machining within .001" tolerance for exact fit and consistent performance
• Billet aluminum pressure plates combined with high carbon billet steel components for strength and lightweight construction
• Twin clutch setup offering increased clamping force and quicker response compared to single-plate clutches
• Maintenance-free operation for long-lasting reliability
• Designed for bolt-on installation with no major modifications required

Construction & Design:

The SPEC Carbon ST-Trim Twin Clutch Kit is engineered with premium materials to ensure durability and performance under extreme conditions. The friction disks are fully faced with carbon fiber, providing excellent thermal stability and consistent engagement even during aggressive launches and extended track sessions. The clutch components are machined to tight tolerances within .001", ensuring precise fitment and smooth operation.

The pressure plates are crafted from billet aluminum, offering a lightweight yet robust structure that reduces rotational mass. High carbon billet steel is used for critical components to maximize strength and longevity. This combination of materials and meticulous engineering results in a clutch kit that withstands high torque loads while maintaining street-friendly drivability.

Performance & Sound

This twin clutch kit enhances vehicle performance by enabling quicker, more controlled launches and improved power transfer. Unlike many racing clutches, it delivers these benefits without harsh engagement or excessive noise, making it suitable for both competitive and street use. Drivers will experience a more responsive throttle feel and reduced clutch chatter, contributing to a more enjoyable driving experience.

Installation & Fitment:

The SPEC Carbon ST-Trim Twin Clutch Kit is designed for direct replacement of the factory clutch on 2008–2023 Dodge Challenger SRT8 6.1L and 2009–2022 Dodge Challenger R/T 5.7L HEMI models. Installation is straightforward with bolt-on compatibility, requiring no major modifications or custom adjustments. This kit is built to order with an estimated lead time of 5–7 business days.

What's Included:

• Twin carbon fiber friction disks fully faced
• Billet aluminum pressure plates
• High carbon billet steel components
• Installation hardware
• Detailed instructions for proper installation

Ideal For:

• Street performance enthusiasts seeking improved clutch feel and durability
• Drag racers requiring higher torque capacity and quicker launches
• Drifting drivers needing reliable clutch engagement and smooth modulation
• Dodge Challenger owners upgrading from OEM clutch for enhanced performance

SPEC delivers clutches and drivetrain components. With an emphasis on power transfer and drivability, their products help performance cars put power down cleanly—whether you’re upgrading a daily driver, building for track days, or supporting added torque. SPEC is a solid choice when engagement, durability, and consistent performance matter.