Will the EXEDY Stage 2 Cerametallic Clutch fit a 2018 WRX STI?

Yes. Turn 14 lists the 15951 for the 2017-2019 VA WRX STI, Limited, Type RA and S209 included, as well as the 2004-2014 Impreza WRX STI and the 2007-2009 Legacy GT spec.B. EXEDY USA lists the 2004-2014 STI and the spec.B as well.

How much power will the STI clutch hold?

EXEDY rates the 15951 at 482 lb-ft of torque capacity at the flywheel and 386 lb-ft at the wheels, from 2,536 lb of clamp load. That suits an EJ257 with bolt-ons, a tune and a modestly larger turbo, short of the big-turbo builds that need the HD version.

Is it a pull-type clutch?

Yes. Turn 14 lists the 15951 as pull type, matching the release system of the six-speed STI and spec.B. A matching pull-type release bearing is needed, and it is worth replacing during installation because the transmission has to come out to reach it.

Standard or HD clutch for an STI?

The standard 15951 is rated at 386 lb-ft at the wheels, and the HD 15951HD raises clamp load to 3,597 lb and the rating to 548 lb-ft. A daily-driven STI on a tune is easier to live with on the standard kit, while a big-turbo or ethanol car needs the HD.

Does the thick disc suit track days?

Yes. The thick disc of the EXEDY Stage 2 Cerametallic Clutch carries more heat than a thin one before it fades, which is what a track day or repeated launches demand. It engages more firmly than the factory clutch, softened by the sprung hub.

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Description

EXEDY Stage 2 Cerametallic Clutch Kit for Subaru WRX STI and Legacy GT spec.B (Thick Disc)

EXEDY’s Stage 2 Cerametallic Clutch Kit for Subaru WRX STI and Legacy GT spec.B fits the six-speed EJ257 cars on their factory pull-type release, from the 2004 GD STI to the 2019 VA, along with the spec.B Legacy. The 240 mm thick cerametallic disc and 2,536 lb of clamp load are rated at 482 lb-ft at the flywheel, a sensible ceiling for a tuned STI on a stock-frame or slightly larger turbo.

Design and Performance

A ductile-cast cover delivers 2,536 lb of clamp load to a 240 mm thick cerametallic disc on the 24-tooth, 25.2 mm spline, for 607 lb-ft of clutch torque by EXEDY figures. The thick disc carries the heat of launches and track sessions, and the sprung center damper reduces the shock sent through the six-speed, center differential and rear driveline.

Features

EXEDY Stage 2 Cerametallic Clutch with a thick disc
Pull-type design for the six-speed release system
Ductile-cast pressure plate, 2,536 lb clamp load
Sprung center damper to protect the AWD driveline
SFI 1.1 compliant, according to EXEDY

Specifications

Disc diameter: 240 mm
Input spline: 24 tooth, 25.2 mm
Clamp load: 2,536 lb
Clutch torque capacity: 607 lb-ft
Torque capacity at the flywheel: 482 lb-ft
Torque capacity at the wheels: 386 lb-ft

Applications

Subaru Impreza WRX STI: GD / GR / GV | 2004-2014 | 2.5L H4 turbo (including Limited and Special Edition)
Subaru Legacy GT spec.B: 2007-2009 | 2.5L H4 turbo
Subaru WRX STI: VA | 2017-2019 | 2.5L H4 turbo (including Limited, Type RA and S209)

Notes

Turn 14 lists this kit as a pull-type clutch for the six-speed cars
Turn 14 also lists a 2007 Legacy 2.5i Special Edition, a non-turbo model, which is left out here; the VA WRX STI is listed for 2017-2019 only
A higher-clamp version is the EXEDY Stage 2 Cerametallic Clutch Kit for the WRX STI in HD form

Frequently Asked Questions

Will the EXEDY Stage 2 Cerametallic Clutch fit a 2018 WRX STI? Yes. Turn 14 lists the 15951 for the 2017-2019 VA WRX STI, Limited, Type RA and S209 included, as well as the 2004-2014 Impreza WRX STI and the 2007-2009 Legacy GT spec.B. EXEDY USA lists the 2004-2014 STI and the spec.B as well.
How much power will the STI clutch hold? EXEDY rates the 15951 at 482 lb-ft of torque capacity at the flywheel and 386 lb-ft at the wheels, from 2,536 lb of clamp load. That suits an EJ257 with bolt-ons, a tune and a modestly larger turbo, short of the big-turbo builds that need the HD version.
Is it a pull-type clutch? Yes. Turn 14 lists the 15951 as pull type, matching the release system of the six-speed STI and spec.B. A matching pull-type release bearing is needed, and it is worth replacing during installation because the transmission has to come out to reach it.
Standard or HD clutch for an STI? The standard 15951 is rated at 386 lb-ft at the wheels, and the HD 15951HD raises clamp load to 3,597 lb and the rating to 548 lb-ft. A daily-driven STI on a tune is easier to live with on the standard kit, while a big-turbo or ethanol car needs the HD.
Does the thick disc suit track days? Yes. The thick disc of the EXEDY Stage 2 Cerametallic Clutch carries more heat than a thin one before it fades, which is what a track day or repeated launches demand. It engages more firmly than the factory clutch, softened by the sprung hub.

About EXEDY

EXEDY Corporation of Neyagawa, Osaka, traces its clutch business back to 1923 and built its name as Daikin Clutch before adopting the EXEDY brand. It is a leading original-equipment maker of clutches and powertrain parts, and its racing line supplies Hyper Series multi-plate clutches for drag, circuit and rally use. EXEDY Globalparts Corporation, its wholly owned US subsidiary, supports the range in North America.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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EXEDY Stage 2 Cerametallic Clutch Kit for Subaru WRX STI and Legacy GT spec.B (Thick Disc) [15951]

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EXEDY Stage 2 Cerametallic Clutch Kit for Subaru WRX STI and Legacy GT spec.B (Thick Disc)

Design and Performance

Features

Specifications

Applications

Notes

Frequently Asked Questions

About EXEDY

Reviews