Invidia Q300 Rolled Tip Cat Back Exhaust Honda Civic Si Sedan 2012-2015 | HS12HC4G3S Wheel Width_8 inch ARP uses a premium grade

ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality

All Pro Series throttle bodies are CNC-machined from forged billet 6061-T6 aluminum and hard anodized for maximum durability

Part #: HB453Z

ensuring smooth

Stiffens your stock transmission support which will add some noise

Invidia Q300 Rolled Tip Cat Back Exhaust Honda Civic Si Sedan 2012-2015 | HS12HC4G3S Wheel Width_8 inch ARP uses a premium gradeHS12HC4G3S Fitment Information: 2012 2015 Honda Civic Si SEDAN Features: New gaskets and hardware 304 stainless steel construction 2. 76" Inch piping diameter 4. 33" Inch stainless exhaust tip Resonated mid pipe Exhaust hangers welded onto the OEM locations to make for a direct fitment Notes: Ask yourself: "Do I love the sound of a healthy K series?" Your answer is definitely yes if you're reading this. The Q300 for the 9th gen Civic Si is sweet! 3"