Supertech Black Nitride Valves for Acura RSX TSX K20 K24 PTE -4AN line with one 90°

-4AN line with one 90° end and one straight end

FIC High-Z 650CC (IS175-0650H)

* OAL = Over All Length including the exhaust tip

TP-CT/7 (Carbon Fiber Tips)

2011-2014 Subaru WRX Hatchback

Supertech Black Nitride Valves for Acura RSX TSX K20 K24 PTE -4AN line with one 90°Supertech black nitride exhaust and intake valves for K20 K24 Acura RSX and TSX. These valves are available in various sizes to match your head diameter. Sold as a set of 8 or individually as needed. Please do all your research and consult your engine builder if necessary! Black nitride valves are made from one piece forged stainless steel then go through a special hardening process to lessen the friction between the valve and guide. There are a lot