Competition Clutch
Competition Clutch 2004-2011 Subaru STI 15lb Steel Flywheel
SKU: C008 2-721-ST
Description
Part #: 2-721-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 2-721-ST |
Videos
Unboxing HKS 2.8 Step 2 stroker kit, oil pump, connecting rods full engine internals unboxing review
Finally Unboxing my numbered HKS 2.8 Crate Motor from JAPAN!
UP Garage RB28 GTR 2.8 liter HKS stroker kit forged internals Step 2 VCam and HKS 2530 turbos
HKS RB28 Step 3 STROKER | $75k motor!?
1996 Nissan R33 GTR Skyline 2.8L HKS Stroker in car WIDEOPEN pull and walkaround video ( Forsale)
2.8L Stroker RB26 Time Attack built GTR on the streets EP13
550HP Skyline GT-R R33 (HKS 2.8L Stroker and GT-SS's)
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