Skunk2 Ultra Series Honda/Acura Silver RACE Intake Manifold 2 Liter Spacer (Inc Gasket & Hardware)Increase the plenum volume by 2 liters in your Ultra Series Race intake manifold with our new billet aluminum plenum spacer. This spacer kit includes bolts and a gaskets to fit our Ultra Series Race intake manifold for either the B or K series. This Part Fits: Year Make Model Submodel 2013 2017 Acura ILX Base 1990 1993,1997 2001 Acura Integra GS 1992 2001 Acura Integra GS R 1990 2001 Acura Integra LS 1990 1998 Acura Integra RS 1995 1996 Acura Integra