Description
Cobb Stage 1+ Drivetrain Package Black w Red Subaru Legacy GT Spec B 6MT 2006 2009 224X01P RD Vehicle Model_Type R ARP head studs for your ARP head studs for your Subaru WRX and STI ARP uses a premium grade 8740 chrome moly that is rated far superior to "aircraft" quality The ETS MAF Intake Includes a huge 5" inlet K+N air filter which feeds the intake pipe via the ETS EVO X MAF adapter which is milled on the ETS lathe for the perfect transition to the inlet diameter of the MAF sensor tube