Invidia N1 Catback Exhaust Civic Si Sedan (2006-2011) Acura All these features make this

All these features make this a quality lightweight flywheel at a great price

Note: For Sedan

ALTA was the first manufacturer to design a two piece

This exhaust features 102mm quad tips and provide max gaions of 11 hp and 11 ft-lbs of torque at the crank

we suggest only purchasing these if you can handle it

Invidia N1 Catback Exhaust Civic Si Sedan (2006-2011) Acura All these features make thisThe Invidia N1 system for your Civic Si features 70mm piping and an attractive 101mm titanium tip. Made entirely from mirror polished stainless steel, all Invidia exhaust systems include their signature thick CNC flanges and precision robotic TIG welds. All mandrel bends and their signature N1 syle free flowing muffler release more ponies to the pavement for performance you will hear and feel. The N1 features and extremely aggressive exhaust note and