aFe Silver Bullet Throttle Body Spacer Kit - 2021-2023 Subaru Crosstrek Subaru-Outback-2010 With well over a year

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

The main difference is that the AOS R system returns what is collected into the oil pan

1/4" thick CNC-laser cut bracket

Crafted from high-strength 7075 aluminum and 304 stainless-steel

aFe Silver Bullet Throttle Body Spacer Kit - 2021-2023 Subaru Crosstrek Subaru-Outback-2010 With well over a yearThe 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