- 06-11 Civic SI models both Coupe and Sedan
- 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
*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.