SKU: 57-3042 | UPC: 024844109453
K&N 57-3042 Performance Air Intake System for 2003-2007 Cadillac CTS V6 3.6L DOHC
The K&N 57-3042 Performance Air Intake System delivers more airflow to the engine of your 2003-2007 Cadillac CTS with 3.6L V6 DOHC or 2.8L L6 engines. This kit replaces the factory air filter and intake tube with a roto-molded HDPE tube and oversized oiled cotton High-Flow Air Filter for dyno-proven gains of up to 11 HP at 5900 RPM and increased torque. A custom heat shield blocks engine bay heat while the washable filter lasts up to 100000 miles between services under highway conditions.
Key Features
- High-Density Polyethylene Tube: Roto-molded HDPE increases airflow volume to the engine for guaranteed horsepower and torque gains.
- High-Flow Air Filter: Washable reusable oiled cotton media in oversized conical design needs cleaning only every 100000 miles under normal highway driving.
- Custom Heat Shield: Protects intake air from engine bay temperatures to maintain cooler denser air for better performance.
- Easy Installation: Completes in 60 minutes or less using basic hand tools with no vehicle disassembly required.
- No-Hassle Lifetime Limited Warranty: Backed by K&N for long-term reliability and will not void your vehicle warranty.
Product Notes
- Engineered for high airflow and filtration on stock or modified engines.
- Clean filter with K&N Recharger kit and inspect every 50000 miles in dusty conditions.
- Ships as complete kit including all hardware and instructions.
Installation Notes
- Professional installation recommended.
- Remove factory airbox and intake tube using basic hand tools.
- Compatible with OEM hardware, no cutting or permanent modifications needed.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003 | Cadillac | CTS | Base 3.6L V6, 2.8L L6 |
| 2004 | Cadillac | CTS | Base 3.6L V6 |
| 2005 | Cadillac | CTS | Base 3.6L V6 |
| 2006 | Cadillac | CTS | Base 3.6L V6 |
| 2007 | Cadillac | CTS | Base 3.6L V6 |
Why Choose K&N?
- Over 60 years of air intake engineering for automotive performance.
- Dyno-tested systems deliver measurable horsepower and torque increases.
- Million-mile filter durability with simple maintenance for everyday drivers.
Frequently Asked Questions
- Q: Does the K&N 57-3042 fit my 2005 Cadillac CTS 3.6L V6?
A: Yes, it fits all 2003-2007 Cadillac CTS models with 3.6L V6 DOHC or 2.8L L6 engines including Base trims. - Q: What materials are used in this intake kit?
A: Roto-molded high-density polyethylene HDPE tube paired with oiled cotton gauze filter media and powder-coated heat shield. - Q: What is the warranty and maintenance schedule?
A: Covered by K&N No-Hassle Lifetime Limited Warranty. filter cleans every 100000 miles under highway use.
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Protective cardboard box 22.25 x 14.25 x 9.5 inches
- Weight: 7.6 lbs
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