HKS Metal Head Gasket (1.2mm) - Evo X 4B11 Deatschwerks An excellent modification that is

An excellent modification that is particularly well suited to track cars

It can be installed externally or in-tank using optional hardware that is sold separately

Genuine Honda: Opening temp 78C / Full open temp 90C

and taking advantage of the characteristic that the higher the exhaust flow rate

this system is suitable for S30 Fairlady Z's equipped with the L20 engine

HKS Metal Head Gasket (1.2mm) - Evo X 4B11 Deatschwerks An excellent modification that isHKS specializes in aftermarket high performance parts and is perhaps the most well known aftermarket brand in the world. Formed in 1973, and named after the founders Hasegawa, Kitagawa, and Sigma, HKS began tuning engines and cars. Their vision was to tune and manufacture engine components that surpasses OE Manufacturers. They now produce some of the highest quality aftermarket parts on the market, with some of the most innovative design available.