aFe 21-23 Subaru Crosstrek Silver Bullet Throttle Body Spacer Kit - 46-30005 fits_2011-`Dodge`Challenger Improves throttle Response

Improves throttle Response

Compatible with factory trim or optional AutoTecknic shift boot conversion kit

This exhaust system is constructed out of mandrel-bent 304 stainless steel tubing for unrestricted flow and is MIG-welded for strength and durability

Designed specifically for BMW G90 & G99 M5

aFe 21-23 Subaru Crosstrek Silver Bullet Throttle Body Spacer Kit - 46-30005 fits_2011-`Dodge`Challenger Improves throttle ResponseThe 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