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The Killer B Motorsport Holy Header was developed using state of the art CAD software & simulations to determine optimal design to increase power in the mid to high RPM range
Tech springs can be used with stock shocks
THE POPULAR HKS SSQ GETS BETTER
it experiences atmospheric pressure
Invidia Q300 Single Exit Cat Back Exhaust - Stainless Steel Tip - 2008-2010 Subaru WRX Hatchback PDM_fuel-pumps The Killer B Motorsport HolyThe Q300: Street Legal Sound Without the Street Compromise The Invidia Q300 Cat Back Exhaust with Stainless Steel Tip for the 2008 2014 Subaru WRX STI Hatchback is tuned specifically for the daily driven enthusiast more aggressive than stock, with a clear performance exhaust note, but calibrated to avoid the drone and cabin resonance that make some exhausts unlivable on a commute. The Q300 delivers improved exhaust flow and an engaging sound character