SKU: 57-3048 | UPC: 024844109637
K&N 03-04 Chevrolet Trailblazer V8-5.3L / 03-04 GMC Envoy V8-5.3L Performance Intake Kit
The K&N 57-3048 Performance Air Intake System delivers more airflow to 2003-2004 Chevrolet Trailblazer and GMC Envoy 5.3L V8 engines for gains up to 12.3 horsepower at 5200 RPM and added torque. This kit replaces the factory air filter and intake tube with a roto-molded high-density polyethylene HDPE tube and oversized oiled cotton high-flow filter protected by a custom heat shield. Installation takes 60 minutes or less using basic hand tools and it carries a No-Hassle Lifetime Limited Warranty.
Key Features
- High-Flow Air Filter: Washable reusable oiled cotton media in an oversized conical design lasts up to 100000 miles between cleanings under normal highway driving
- Roto-Molded HDPE Intake Tube: Increases airflow volume to the engine while resisting heat from the engine bay
- Custom Heat Shield: Shields intake air from underhood heat for cooler denser air charge
- Power Gains: Dyno-tested increase of 12.3 HP at 5200 RPM and matching torque improvement
- Easy Maintenance: Filter cleans with K&N cleaning kit no replacement needed for life of vehicle
Product Notes
- Easy bolt-on replacement for stock components no cutting or permanent modifications required
- Clean filter every 100000 miles or sooner in dusty conditions using K&N service kit
- Ships in protective box weighs 7.85 lbs dimensions 20.25 x 13.25 x 10.75 inches
Installation Notes
- Professional installation recommended.
- Completes in 60 minutes or less with basic hand tools no special tools needed
- Includes all necessary hardware clamps and instructions compatible with OEM components
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003-2004 | Chevrolet | Trailblazer | 5.3L V8 |
| 2003-2004 | Chevrolet | Trailblazer EXT | LS 5.3L V8 |
| 2003-2004 | Chevrolet | Trailblazer EXT | LT 5.3L V8 |
| 2003-2004 | Chevrolet | Trailblazer EXT | North Face 5.3L V8 |
| 2003-2004 | GMC | Envoy | 5.3L V8 |
| 2003-2004 | GMC | Envoy XL | SLE 5.3L V8 |
| 2003-2004 | GMC | Envoy XL | SLT 5.3L V8 |
| 2004 | GMC | Envoy XUV | SLE 5.3L V8 |
| 2004 | GMC | Envoy XUV | SLT 5.3L V8 |
Why Choose K&N?
- Over 50 years engineering air intake systems for millions of vehicles worldwide
- High airflow with proven filtration that outperforms stock setups
- Precision fitment designed and tested on actual vehicles for reliable performance
Frequently Asked Questions
- Q: Does this fit my 2003 Trailblazer 5.3L V8?
A: Yes it fits all 2003-2004 Chevrolet Trailblazer 5.3L V8 models including EXT LS LT and North Face editions plus matching GMC Envoy variants - Q: What material is the intake tube made from?
A: Rotationally molded high-density polyethylene HDPE for strength durability and smooth airflow - Q: What is the warranty and does install void my vehicle warranty?
A: Backed by K&N No-Hassle Lifetime Limited Warranty will not void your vehicle manufacturer warranty
Shipping & Handling
- Method: Ground shipping via UPS or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Secure box 20.25 x 13.25 x 10.75 inches
- Weight: 7.85 lbs
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