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Valve tip lengths - They have taken extra time to adjust tip heights on the applications to require less tipping of the valve to maintain proper tip height for proper valve train geometry and to cut down on install times when setting valve lash
On a modified GD/GR/VA STI with elevated boost
25 Thread Type
Say goodbye to overheating issues with your factory top mount intercooler and embrace the power of PERRIN's superior design
HKS Hi-Power Cat Back Exhaust - 2015-2021 Subaru WRX / STI Engine Components>Valve Seals Valve tip lengths - TheyHKS has taken their time to design a free flowing exhaust that sounds great. Low exhaust resonance is eliminated with sound tuning from the built in resonance pipe. HKS has taken their time to design a free flowing exhaust that sounds great. Low exhaust resonance is eliminated with sound tuning from the built in resonance pipe. They aimed to produce an exhaust system to allow owners to enjoy that great boxer sound and succeeded. Stock System Weight:
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