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The removal of the restriction and increased surface area of the filter media significantly improves throttle response and delivers a deeply satisfying induction note at full throttle
Premium Quality "Secure Seal" Material
This simple yet effective kit will bolt into the factory locations and allows Wrangler JL Rubicons to run 35" tall tires and non-Rubicon models with stock fenders to run 33" tall tires
Resonated H-pipe for deep
GrimmSpeed Air Oil Separator Black - Subaru 08-14 WRX/ 05-09 LGT/09-13 FXT (078016) 17725 The removal of the restrictionAn Air Oil Separator has one job, remove the oil from the engine ventilation system so the oil does not get sent through the intake system. The GrimmSpeed Air Oil Separator for Subaru vehicles has a unique design that allows you to maintain your PCV Valve while separating the oil out of the crankcase and head ventilation air! Our AOS will allow your engine to run more efficiently due to the separation of oil from the intake system. When there is oil