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The HIPERMAX S Series offers the best ride in HKS suspension history
Durable multi-layer heat-resistant silicone fiber construction
25 Thread Type
Say goodbye to overheating issues with your factory top mount intercooler and embrace the power of PERRIN's superior design
The E85 320 LPH Fuel Pump is ethanol compatible to supplement your fuel system with a proper amount of fuel
HKS Hi-Power Cat Back Exhaust - 2015-2021 Subaru WRX / STI Engine Components>Valve Seals The HIPERMAX S Series offersHKS 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: