aFe Silver Bullet Throttle Body Spacer 04-12 GM Colorado/Canyon L5 3.5L/3.7L hong kong A pre-installed oil level sight

A pre-installed oil level sight glass allows quick and easy oil inspection

SB020 pressure plate features an exclusive diaphragm design to increase clamp load

2013-2014 Volkswagen Passat Wolfsburg Edition 2008 Volkswagen R32 Base

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This design also reduces intake whistle that occurs with other helix-only designs

aFe Silver Bullet Throttle Body Spacer 04-12 GM Colorado/Canyon L5 3.5L/3.7L hong kong A pre-installed oil level sightThe serrated helix design creates air turbulence in the intake manifold. This turbulence increases the air pressure in the combustion chamber, resulting in increased performance and improved throttle response. The serrated helix combination design also reduces intake whistle that occurs with helix only designs (US PAT 07055513). This Silver Bullet throttle body spacer is precision machined from 6061 T6 billet aluminum for lightweight, high strength,