1998 Honda Civic Si Turbocharger Wastegates
- Boomba Racing®Bypass ValveHonda Civic Si 1998, Bypass Valve by Boomba Racing®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to...Direct bolt-on replacement for the gem bypass valveInternal brass piston design$242.73