The aFe Silver Bullet Throttle Body Spacer (46-34022) is precision-engineered to enhance performance on 2002-2009 Chevrolet Trailblazer and GMC Envoy 4.2L engines. CNC-machined from 6061-T6 billet aluminum, this spacer features a patented serrated/helix design (US Patent 07055513) that creates beneficial air turbulence in the intake manifold. This turbulence improves air/fuel mixing for more complete combustion, resulting in measurable gains in horsepower and torque throughout the RPM range. Unlike conventional helix-only designs, the Silver Bullet's unique configuration significantly reduces the characteristic intake whistle while maintaining all the performance benefits. The spacer's black anodized finish provides corrosion resistance and a sleek appearance under the hood. By lengthening the intake track, this component helps increase intake air velocity for improved throttle response. Installation is straightforward using all factory mounting locations, and the included high-quality gasket ensures an airtight seal. The 6061-T6 aluminum construction offers ideal strength-to-weight characteristics while resisting heat deformation common in plastic spacers.
Key Features :
Fits 2002-2009 Trailblazer/Envoy 4.2L engines
6061-T6 billet aluminum construction
Patented serrated/helix design (US Patent 07055513)
Reduces intake whistle common with helix designs
Black anodized finish for durability
Includes high-quality sealing gasket
Uses factory mounting points
Made in USA
1 to 2 Business Days
Express Shipping
from the Best Brands
30 Days Simple Policy
!