Supertech Black Nitride Valves for Acura RSX TSX K20 K24 PTE FIC High-Z 650CC (IS175-0650H)

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

The Spec-R springs will lower your 370Z about 1

* OAL = Over All Length including the exhaust tip

2011-2014 Subaru WRX Hatchback

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Supertech Black Nitride Valves for Acura RSX TSX K20 K24 PTE FIC High-Z 650CC (IS175-0650H)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