Stage 3 Clutch Kit (1MS) for Subaru WRX STI 2004-2021 2.5L DOHC (EJ257) Turbo AWD Includes ACT Monoloc
SKU: 77905713300

Stage 3 Clutch Kit (1MS) for Subaru WRX STI 2004-2021 2.5L DOHC (EJ257) Turbo AWD Includes ACT Monoloc

Sale price$298.78 Regular price$331.98
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Stage 3 Clutch Kit (1MS) for Subaru WRX STI 2004-2021 2.5L DOHC (EJ257) Turbo AWD Includes ACT MonolocAction Clutch's Stage 3 (1MS) Clutch Kit is designed to withstand even the most challenging conditions. Featuring a heavy duty single diaphragm pressure plate, reinforced drive straps, and a Sprung MIBA Ceramic (available in a 4 or 6 puck) disc, this kit provides peak performance and extreme durability for low mild horsepower vehicles. Our Sprung MIBA Ceramic clutch kit provides quicker engagement and will introduce some clutch chatter, which will

Action Clutch's Stage 3 (1MS) Clutch Kit is designed to withstand even the most challenging conditions. Featuring a heavy-duty single diaphragm pressure plate, reinforced drive straps, and a Sprung MIBA Ceramic (available in a 4 or 6 puck) disc, this kit provides peak performance and extreme durability for low/mild horsepower vehicles. Our Sprung MIBA Ceramic clutch kit provides quicker engagement and will introduce some clutch chatter, which will minimize after proper break-in. For those looking to take their vehicles to the next level, the Stage 3 (1MS) Action Clutch Kit provides maximum control and power with little compromise on reliability.

At Action Clutch, safety is our top priority. We understand how catastrophic engine or transmission damage can be caused by springs popping out which is why we use our patented, fully enclosed spring retainers to keep your investment protected at all times. Every kit is quality checked by one of our experienced engineers (with over 60 years of collective experience) and signed off as safe before being released as a finished product. This gives you peace of mind knowing that your Action Clutch will perform consistently every time.

170% INCREASED HOLDING CAPACITY OVER FACTORY KIT*
HEAVY-DUTY STREET USE AND OCCASIONAL DRAG / ROAD / DRIFT RACING

Specifications

Product Type Stage 3 Clutch Kit (1MS)
Product Weight (lbs)
SFI 1.1
 
What’s Included
  • Sprung MIBA Ceramic 6 Puck Disc
  • Single Diaphragm HD Pressure Plate
  • Pilot Bearing / Bushing (when applicable)
  • Clutch Alignment Tool
  • Conventional Release Bearing

Break-in Requirements
500 street miles / Keep RPM’s under 4500, no more than half-throttle, no boost (if applicable).
Proper break-in is required in order to retain product warranty, ensure longevity and holding capacity.

Disclaimers
Ceramic based clutch discs intend to increase the holding capacity and durability of the clutch as opposed to an increased life expectancy. Using a ceramic based material for easy street driving may contribute to premature wear of the clutch kit due to the harsher engagement and because of the higher tendency to slip the clutch during street driving.

*Increase in holding capacity is rated in Crank Torque, not Wheel Torque




SFI Spec 1.1 Replacement Flywheels and Clutch Assemblies

California Residents: Prop 65 WARNING: This product MAY contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.p65warnings.ca.gov
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 77905713300

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4.2 ★★★★★
Based on 288 reviews
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Verified Purchase
Nadia
Whiting, US
★★★★★ 5
Happy
Size: size for 3/6/CX5 Non-Turbo
They fit my car. So im happy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
D
Verified Purchase
Daniela Smith Peixoto
Birmingham, US
★★★★★ 4
Only received one of the two filters
I had to return because I only received the cabin filter, not the engine filter. Delivery was delayed and maybe this caused the misplacing of the other part. Not sure. I am placing another order, hoping that it will be complete this time. It is good qualiflty, though.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 20, 2025
H
Verified Purchase
Happy ag
Cuba, US
★★★★★ 5
Buy these, save some $$
Size: size for ASCENT/CROSSTREK/IMPREZA/LEGACY/OUTBACK
Save yourself about $100 by replacing these yourself, we have a Subaru Impreza. Easy to install for a few minutes time spent on YouTube. The dealers make a bundle on this sort of thing.
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Reviewed in the United States on April 3, 2026
A
Verified Purchase
A_CPA
Carnegie, US
★★★★★ 5
Two Filters, Quick and Easy
Size: 16-23 Tacoma, Size: 16-23 Tacoma
The RVgolf Engine+Cabin Air Filters Kit for the Toyota Tacoma V6 comes with two air filters. There is a cabin air filter that fits nicely into the compartment accessed through the glove box and an engine air filter that dropped in easily in the compartment under the hood. Replacement of both filters was easy, didn’t require any tools, and it took more time to empty and replace the items in the glove box than it did to replace both filters. The Toyota dealership quoted me $80 to replace the cabin air filter only. I replaced both filters for less than $30. The filters felt like they were good quality. The engine air filter is multi-layered, with a thin foam layer to keep larger debris from blocking the finer paper filter. The cabin air filter said and looked like it had a carbon layer to absorb smells. The only concern I had was size. After I had replaced both filters I went to slide the engine air filter I replaced into the RVgolf box to throw it away. The engine air filter I replaced would not slide into the RVgolf box. It was too big. After driving for a few days and a couple of hundred miles, I popped the hood and checked the fit of the engine air filter. The fit looked perfect. See attached photos.
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Reviewed in the United States on May 9, 2026
J
Verified Purchase
jennifer
Bozeman, US
★★★★★ 5
Fits 2019 accord (gas engine)
Size: 18-22 Accord
Dealer was going to charge almost $200 to change both of these filters in my 2019 accord. These filters fit perfectly and of same quality as the dealer product. Easy to install, saving me lots of money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026

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