he Silver Bullet throttle body spacer is constructed from precision machined 6061 - T6 billet aluminum and is designed using a serratedhelix design that creates turbulence in the air flow at the point just prior entry into the engine optimizing the combustion cycle. This turbulence helps the airfuel charge burn completely providing increased horsepower, torque and improved throttle response. During testing, Silver Bullet throttle body spacers have resulted up to 10 Horsepower and up to 14 lbs. x ft. of torque max gains.