Competition Clutch Lightweight Steel Flywheel for B Series

Competition Clutch Lightweight Flywheel - 1990-2001 Acura Integra / 1999-2000 Honda Civic Si / 1994-1997 Honda Del Sol VTEC

Want your B series to rev a bit quicker without killing drivability? The Competition Clutch lightweight flywheel weighs 12.32 pounds, which is lighter than your factory flywheel but not so light that you lose all your low-end torque. This is the ST version, which means it's Competition Clutch's street-friendly lightweight flywheel. It's designed for naturally aspirated engines and daily-driven cars where you want better throttle response but you don't want to sacrifice smooth drivability in traffic. If you're running a stock or mildly built B series with Gravity, Stage 1, or Stage 2 clutches, this is the flywheel you want.

12.32 Pounds Is the Sweet Spot for Street Use

This flywheel weighs 12.32 pounds. Your factory B series flywheel weighs somewhere around 16-18 pounds depending on which engine you've got. You're cutting 4-6 pounds of rotational weight, which makes your engine rev quicker without making it annoyingly peaky at low RPM. The 12.32-pound weight is Competition Clutch's compromise between performance and drivability. You get noticeably better throttle response and quicker revs, but you still have enough flywheel mass to smooth out power delivery when you're crawling in traffic or lugging the engine at low RPM. If you're daily driving your Integra, Civic Si, or Del Sol and you want it to feel more responsive without ruining the drivability, the 12.32-pound ST flywheel's the right call.

Designed for Street-Driven Cars

Competition Clutch makes this ST lightweight flywheel specifically for naturally aspirated engines and daily-driven cars. It's not the ultra-lightweight STU version that weighs 8.58 pounds and kills your low-end torque. The ST version preserves enough flywheel mass to keep your low-end torque intact, so your engine doesn't feel gutless when you're accelerating from a stop or cruising at low RPM. If you're running stock power or mild bolt-ons and you're daily driving, this is the flywheel you want. If you're building a turbo car or a dedicated track car, Competition Clutch makes the STU ultra-lightweight version.

One-Piece Forged Steel So It Won't Fall Apart

Competition Clutch machines this flywheel from 4140 forged steel in a one-piece design. The ring gear's machined directly into the flywheel body instead of being pressed on separately. That means you're not going to have the ring gear separate from the flywheel, which is what happens with cheap two-piece flywheels when they heat cycle. The one-piece design also prevents your friction surface from warping because there's no separate friction ring that can shift or warp on its own.

Works with Gravity, Stage 1, and Stage 2 Clutches

This ST lightweight flywheel's designed to work with Competition Clutch Gravity, Stage 1, and Stage 2 clutches. It'll work with stock clutches too, but it's really meant for street setups where you're running a mild performance clutch and you want better throttle response without sacrificing drivability.

What You Get

• Competition Clutch lightweight flywheel (ST version, SKU: COC-2-694-ST)
• 4140 forged steel one-piece construction
• 12.32 pounds
• SFI 1.5 certified
• CNC machined and balanced to OEM specs
• Resurfaceable friction surface

Fits Your Car

• 1990-2001 Acura Integra (B series engines)
• 1999-2000 Honda Civic Si EM1 (B16A2)
• 1994-1997 Honda Del Sol VTEC (B16A3)

Compatible Engines

• B16A2, B16A3 (Civic Si, Del Sol VTEC)
• B17A, B18A, B18B, B18C (Integra)

Note: This is the lightweight ST version for naturally aspirated engines and street-driven cars. It preserves low-end torque and drivability while giving you better throttle response. If you're building a turbo car or a dedicated track car and you want the fastest revving possible, Competition Clutch makes an ultra-lightweight STU version that weighs 8.58 pounds. Have your flywheel resurfaced or replaced when you're installing a new clutch. Don't reuse a worn or heat-checked flywheel or your new clutch won't work right.