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The Invidia N1 cat-back exhaust with 76mm titanium tips for 2006–2011 Civic Si four-door models delivers a racing-style exhaust replacement tuned for the Si. It offers a less restrictive flow path and a sportier sound compared with stock systems. Confirm the four-door Civic Si application to ensure proper fitment before purchase.
Invidia 06-11+ Civic Si 4Dr ONLY 76mm RACING N1 Titanium Tip Cat-back Exhaust
