8th Gen Civic Header (06-11 Civic Si) - K20 OnlyApplications: 06 11 Civic SI models both Coupe and Sedan Features: Fits Civic Si with K20Z3 engine. 4 2 1 Tri Y Design 304 Stainless Steel CNC cut 3 8" thick SS Flanges 2. 5" Outlet Note: *It is highly recommended to upgrade your rear engine mount to a Hasport rear mount to limit movement.*Donut gasket can be replaced by OEM Honda part (18229 PCX 003), you will have to reuse the metal ring. K Tuned 8th Gen Header The K Tuned 8th Gen Civic SI Header
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