aFe Silver Bullet Throttle Body Spacer Kit - 2021-2023 Subaru Crosstrek Subaru-Outback-2010 0-150PSI readout

0-150PSI readout

With well over a year of development and now multiple national championships

this oil cap delivers both style and functionality for your Subaru’s engine bay

available in two different designs: Type 1

aFe Silver Bullet Throttle Body Spacer Kit - 2021-2023 Subaru Crosstrek Subaru-Outback-2010 0-150PSI readoutThe Serrated Helix combination design creates intake turbulence in the combustion chamber. This turbulence breaks up the fuel which creates a more complete combustion cycle increasing horsepower, torque and improving throttle response. The Serrated Helix combination design also reduces intake whistle that occurs with Helix only designs. All Silver Bullet Throttle Body Spacers are constructed from 6061 T6 billet aluminum precision machined for light