aFe Silver Bullet Throttle Body Spacer Kit (46-39002) 1711 ACT MaXX pressure plates use

ACT MaXX pressure plates use exclusive diaphragm design to increase clamp load

making them ideal for handling the elevated temperatures within the engine compartment

Advanced real-time control to optimize water methanol injection based on manifold pressure

BM13-HDG4 kit features ACT's most popular Heavy Duty pressure plate

aFe Silver Bullet Throttle Body Spacer Kit (46-39002) 1711 ACT MaXX pressure plates useSilver Bullet Throttle Body Spacer by aFe. What is inexpensive, takes only a few minutes to install, and results in more power and improved throttle response? The aFe Silver Bullet! The Silver Bullet Throttle Body Spacer installs between your throttle body and intake manifold. It creates turbulence and improves volumetric efficiency for more complete combustion. The aFe Silver Bullet Throttle Body Spacer is an easy and economical way to increase