Supertech Black Nitride Valves for EJ WRX/STi Clock Gauge S58 Engine

S58 Engine

-Installs in under 30 minutes

stacked-plate oil cooler will decrease oil temperatures by up to 30 degrees and reduce oil degradation

We tried many things to try to shield the oil from the turbulent air but eventually found that a deeper oil pan took care of the issue

SPL RTA G29

Supertech Black Nitride Valves for EJ WRX/STi Clock Gauge S58 EngineSupertech black nitride exhaust and intake valves for EJ20 EJ25 Subaru WRX and STi. 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. Vehicle