Skunk2’s all-new Cold-Air Intake system for the ’06-’11 Civic Si is the most comprehensive kit available.
Each kit includes relocation hardware for the battery, ECU, fuse box, and cooling system reservoir tank as well as high-quality stainless steel hose clamps and mounting hardware. Unlike other intake systems, only Skunk2’s unique design and brackets allow for the OEM battery to be retained. A specially shaped, silicone upper radiator hose is also included with each kit to ensure maximum clearance for the intake tubing and proper fitment.
With a fair amount of parts included, we figured that a video demonstrating how to install the system might help. Check it out.