Invidia N1 Cat-Back Exhaust 2006-2011 Honda Civic Si Coupe (SS Tip) 335ix The Down Sus provides a

The Down Sus provides a lowered stance and improved handling to fulfill your needs to lower your car and improve its handling

Air flow chart for a sample BMC air filter against an OEM paper filter

With our 40+ years in suspension tuning we offer a much more tuned and specialized spring over the competitors

Tip- Oval staggered Quad tips

As a compromise

Invidia N1 Cat-Back Exhaust 2006-2011 Honda Civic Si Coupe (SS Tip) 335ix The Down Sus provides aFor a good balance of price and performance, Invidia offers the motorsports enthusiasts a strong line up of Invidia N1 Exhaust is constructed with high quality SUS304 stainless steel, CNC machined flanges, and manufactured with a polished finish. Each system features mandrel bent stainless steel piping for maximum exhaust flow and reduced back pressure. These sxhausts are engineered to produce strong mid to top end power gains, as well as an increase