Invidia N1 Cat-Back Exhaust for 2006-2011 Civic Si Select::Sedan 70mm (HS06HC4GTT) Fits 4G63 and G4CS Blocks

Fits 4G63 and G4CS Blocks with minor grinding

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Blue anodized titanium hardware shaves even more unsprung weight from the arms

6 kg OEM Exhaust

oil and water lines

Invidia N1 Cat-Back Exhaust for 2006-2011 Civic Si Select::Sedan 70mm (HS06HC4GTT) Fits 4G63 and G4CS BlocksThe Invidia N1 cat back exhaust systems for the 2006 2011 Honda Civic Si is available for the sedan or coupe models in either 70mm or 76mm polished 304 stainless steel with a burned blue titanium tip. Hangers are designed for an OEM replacement fit and includes all necessary gaskets, hardware and removable silencer. Engineered to produce strong mid to top end power gains, as well as provide an increase in horsepower and torque, reduced back pressure