Skunk2 MegaPower Catback Exhausts Civic Si Legacy GT Engine (10-up) A new range designed to

A new range designed to replace the stock Bosch diverter valve on European applications like Audi and VW but with the GFB TMS advantage

Our Kevlar friction material is non-abrasive and doesn't score the mating surfaces

If you’re working on a rebuild

If you already have the WRX/STI Sedan (11-14) TurboXS stealthback combo complete your setup with a TurboXS catback

Skunk2 MegaPower Catback Exhausts Civic Si Legacy GT Engine (10-up) A new range designed toA properly designed exhaust system is critical to engine performance. Skunk2's MegaPower Exhaust systems for the Honda Civic Si were developed with this in mind and is based off of more than 15 years' worth of racing experience. Dyno proven for maximum horsepower, MegaPower cat back systems are constructed of T 304 stainless steel, are robotically TIG welded, and feature CNC mandrel bends for a precise fit. Featuring Japanese spec, Super N1 styling,