# Airaid 02-09 Chevy Trailblazer / GMC Envoy 4.2L PowerAid TB Spacer The POWERAID Throttle Body Spacer is designed to enhance off-idle torque from 800 rpm to approximately 3,000 rpm. The spacer utilizes it's unique, patented Helix Bore design to spin the incoming air charge as it passes through the throttle body spacer. The spinning air action boosts the velocity of the incoming air and contributes to better atomization of the air/fuel mixture as the air charge enters the combustion chamber. The end result is more part-throttle torque and improved mid-range power. - True bolt-on upgrade that installs in under an hour with common hand tools. No drilling, cutting, or modifications required, making it one of the easiest performance add-ons you can install. - Provides Stronger Mid-Range Power This Part Fits: Year Make Model Submodel 2004-2005 Buick Rainier CXL 2004-2005 Buick Rainier CXL Plus 2008 Chevrolet Trailblazer Base 2002-2007 Chevrolet Trailblazer LS 2002-2009 Chevrolet Trailblazer LT 2002-2003 Chevrolet Trailblazer LTZ 2002-2004 Chevrolet Trailblazer North Face 2003-2006 Chevrolet Trailblazer EXT LS 2002-2006 Chevrolet Trailblazer EXT LT 2002-2004 Chevrolet Trailblazer EXT North Face 2002-2009 GMC Envoy SLE 2002-2009 GMC Envoy SLT 2002-2006 GMC Envoy XL SLE 2002-2006 GMC Envoy XL SLT 2004-2005 GMC Envoy XUV SLE 2004-2005 GMC Envoy XUV SLT 2003 Isuzu Ascender Base 2003 Isuzu Ascender Limited 2003-2004 Isuzu Ascender LS 2004 Isuzu Ascender S 2002-2004 Oldsmobile Bravada Base 2006-2008 Saab 9-7x 4.2i 2005 Saab 9-7x Linear ## Details - **Price:** 218.03 CAD - **Vendor:** Airaid - **Type:** Throttle Body Spacers ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 218.03 CAD | In stock | ## Images - Photo - Primary - Photo - Primary - Photo - Primary - Photo - Primary - User 4 - User 3 - User 4 - Logo Image --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/airaid-02-09-chevy-trailblazer-gmc-envoy-4-2l-poweraid-tb-spacer) > Updated: 2026-06-25