aFe Silver Bullet Throttle Body Spacer 09-18 Nissan 370Z V6-3.7L (VQ37VHR)Brand aFe Part Number 46 36007 Category Air Intake Systems Throttle Body Spacers Condition Brand New Original Manufacturer Packaging One of the easiest additions to improve low end horsepower and torque to your VQ37 is the Silver Bullet Throttle Body Spacers. The TBS has both a Serrated and Helix combination design, which creates air turbulence in the intake manifold, increasing the air pressure in the combustion chamber. This design also reduces