What is the primary benefit of a Stage 5 clutch kit?

A Stage 5 clutch kit, like this SPEC unit, is designed to handle significantly higher horsepower and torque than a stock clutch. The multi-plate design offers a larger friction surface area, which allows for better heat dissipation and the capacity to transfer more power reliably.

Is this clutch kit difficult to install?

Clutch replacement is a moderately difficult job that typically requires removing the transmission. It's recommended to have the proper tools and mechanical knowledge, or to have a professional mechanic perform the installation.

Does this kit include a new flywheel?

This SPEC Stage 5 clutch kit includes the clutch disc, pressure plate, and release bearing. A new flywheel is not typically included in clutch kits and should be inspected for wear or resurfaced if necessary during installation.

Specifications

Brand: SPEC
Part #: ST855-2

Spec 02-05 Lexus IS300 3.0L Stage 5 Clutch Kit

Name: Spec 02-05 Lexus IS300 3.0L Stage 5 Clutch Kit
Brand: SPEC
SKU: spec-spec-02-05-lexus-is300-3-0l-stage-5-clutch-kit-t14-274063
Price: 571.50 USD
Availability: BackOrder

$571.50

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Fits 02-05 Lexus IS300 3.0L. SPEC Stage 5 clutch kit for high-power applications.

Key Features

Fits 2002-2005 Lexus IS300.
SPEC Stage 5 clutch kit designed for high horsepower and torque applications.
Features a sprung multi-plate design for improved shock absorption and torque handling.
High-performance friction material offers strong engagement and durability.
Sprung hub design aims to retain a degree of daily drivability.
Includes necessary components for a complete clutch replacement.

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About this part

Product Details

If you're pushing your 2002-2005 Lexus IS300 well beyond stock power levels, you're going to need a clutch that can keep up. This SPEC Stage 5 clutch kit is built to handle serious horsepower and torque, making it a solid choice for modified vehicles that see track time or aggressive street use. It's designed to provide a firm engagement and reliable power transfer when you need it most.

This Stage 5 kit features a sprung multi-plate design, which helps to absorb shock and vibration, making it more manageable than some other high-performance clutch options. The multi-plate setup significantly increases the surface area for engagement, allowing it to dissipate heat more effectively and handle much higher torque loads. SPEC uses a high-performance friction material that offers excellent bite and durability under demanding conditions. While it's a performance-oriented clutch, the sprung hub design aims to retain a degree of daily drivability, though engagement will be firmer than the factory unit.

Installing a clutch kit like this is a significant undertaking, often requiring the removal of the transmission. It's recommended to replace the rear main seal and pilot bearing while the transmission is out, and inspect the flywheel for any damage or wear. This kit is designed as a direct replacement for the factory clutch assembly, simplifying the installation process as much as possible for a performance upgrade. Ensure you follow the manufacturer's break-in procedure after installation for optimal clutch life and performance.