ACT XACT Streetlite Flywheel for 00-09 Honda S2000

If your S2000 feels sluggish off the line or takes forever to rev out, the stock flywheel is a big part of why. The OEM unit weighs roughly 20 lbs - the ACT XACT Streetlite checks in at just 11.2 lbs. That 9-lb reduction is not a rounding error. It means your F20C or F22C spins up faster, responds more directly to throttle input, and recovers revs quicker between shifts. Whether you are running autocross, drag nights, or just pushing it hard on a canyon road, you will feel the difference immediately.

ACT built the XACT Streetlite as a true one-piece unit from forged chromoly steel, then CNC machined it for dimensional accuracy and dynamically computer balanced it for smooth operation at high RPM. The one-piece forged design matters for two reasons: it transfers heat out of the friction surface more efficiently than multi-piece designs, and it eliminates the warped inserts and loose ring gears that are common failure points on cheaper alternatives. The 109-tooth ring gear is induction hardened - it will not wear out or crack under repeated hard starts the way softer ring gears do.

This flywheel carries an SFI 1.1 certification, which means it has been independently tested and verified for street and drag racing use. If you run at a sanctioned event, this certification is often required. If you just want to know the part has been validated beyond the manufacturer's own claims, SFI 1.1 is your confirmation.

The XACT Streetlite is designed for S2000 owners who want a meaningful performance upgrade that works on the street every day and holds up on track or at the strip on weekends. It is not a race-only part that requires daily compromise. ACT covers this flywheel with a 1-year warranty from date of retail purchase.

Fits: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Honda S2000 (AP1 and AP2) | F20C and F22C engines