You have a K24 or K20 in your 8th Gen Civic SI? This is the BEST HEADER you need! Also fit K20!
Now with bolt-on 200 cell high flow cat!
PLM Private Label Mfg. K-Series 06 - 11 Civic Si K24 & K20 header features a true step-up exhaust header design. This version 2 (V2) is an one-piece design for 100% leak free installation.
These are usually in stock & made to order.
With Bolt-On High Flow Metallic Catalytic Converter.
Fitment:
2006 - 2011 Civic Si
FG FD FA Chassis
Direct fit with K24 engines
Direct fitment with K20 engines
8th Gen Generation Honda Civic
Key Features:
Stainless steel construction
Metallic core 200 cell high flow catalytic converter