Buddy Club Spec II Exhaust - Honda Civic Si 2012-2015 Sedan engine Signature X Pipe Design -

Signature X Pipe Design - Proper design leads to more power and not a choke point

but add a subtle +10mm of width to the front fenders

Specific fitment with the following seats:

This combination creates a super light weight muffler and turbo setup to maintain broad power band

APR Front Bumper Canards help increase front downforce at high speeds

Buddy Club Spec II Exhaust - Honda Civic Si 2012-2015 Sedan engine Signature X Pipe Design -For the Honda Civic Si Sedan only (2012 2015) With 100 percent stainless steel construction and straight through muffler design, the Racing Spec II exhaust system offers both lightweight construction and extreme exhaust high flow efficiency. Torque at low RPM is enhanced by using spring hook type connectors along with an engineered intermediate silencer. Spring hook type connector for better exhaust flow while maintain torque power at lower speed.