aFe Silver Bullet Throttle Body Spacer 09-18 Nissan 370Z V6-3.7L (VQ37VHR) ['fits_2006-2013`Chevrolet`C6'] All SS models come with

All SS models come with distinctive "SS" markings on their exterior

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aFe Silver Bullet Throttle Body Spacer 09-18 Nissan 370Z V6-3.7L (VQ37VHR) ['fits_2006-2013`Chevrolet`C6'] All SS models come withaFe Silver Bullet Throttle Body Spacer 09 18 Nissan 370Z V6 3. 7L (VQ37VHR) 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 intake whistle that occurs with other helix only designs. Kit