Competition Clutch
Competition Clutch 84-90 Nissan CA18DET Steel Flywheel
SKU: C008 2-634-ST
Description
Part #: 2-634-ST
Competition Clutch Lightweight Steel Flywheels (ST suffix) are recommended for naturally aspirated and/or street-driven applications. This flywheel preserves low-end torque and driveability. Well-suited for Stage 1 and Stage 2 clutch applications. Made of 4140 forged steel and are a one-piece design. Not all applications have the ST and STU versions available. Flywheel weights vary from 8lbs to 18lbs depending on application.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Competition Clutch |
| Part Number | C008 2-634-ST |
Videos
Competition Clutch 8090-ST K-Series Clutch Kit with Flywheel - Installation and Review
Deft Motion | Competition Clutch S2000 Clutch Kit and Flywheel
WRX Flywheels: Stock VS Competition Lightweight Revving
Competition Clutch Stage 2 - Subaru Models 06-14 WRX/ 05-09 Legacy GT (Whats In The Box?)
Is a Lightweight Flywheel Really Worth it?
RSX Type S! Competition Clutch stage 1.5 Review!
Honda Complete Clutch Install Guide! B Swapped EK Civic Yonaka Stage 3 Clutch & Lightweight Flywheel
Spec Stage 3+ clutch & LWFW installed on Focus ST
How to Choose the Right Clutch for Your Build
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy