4th Gen 4Runner Doug Thorley Stainless Steel Long Tube Headers
Improve Your Rigs Performance and Sound
Upgrade your 4th gen 4Runner with Doug Thorley Stainless Steel Long Tube Headers, made to deliver significantly more power and improve exhaust flow. Choose from three fitment options to match your model:
- 4.0L V6
- 2003-2004 4.7L V8
- 2005-2009 4.7L V8 (Estimated Shipping Date January 2025)
⚠️ WARNING: ALL DOUG THORLEY SALES ARE FINAL
By purchasing this product, you agree to the following terms: Orders cannot be canceled once placed, regardless of lead times or unexpected delays.
Key Features (Can vary based on engine)
- Header Style: 3:1 Long-Tube Headers
- Material: High-quality T304 Stainless Steel for durability and longevity
- Finish: Silver Ceramic Coated for enhanced heat resistance and aesthetics
- Installation: Bolt-on design for a hassle-free installation
- Primary Tube Diameter: 1-5/8"
- Primary Tube Gauge: 14 Gauge
- Collector Attachment: Factory Flange Connection for seamless integration
- Collector Diameter: 2-1/4"
- Flange Thickness: 3/8" for a secure fit
- Hardware Included: Installation kit with all necessary hardware
- Gaskets Included: Re-use Factory gaskets
Performance Benefits
- Increased Power: Long tube headers add noticeable power gains, especially at higher RPMs.
- Improved Exhaust Flow: The long-tube design optimizes exhaust flow, leading to more efficient engine performance.
- Durability: Made from T304 stainless steel and ceramic coated inside and out, these headers resist corrosion and heat, ensuring long-lasting performance.
Specifications (Can vary based on engine)
- Weld Up: No welding required
- Tuned: Not specifically tuned, but designed for optimal performance
- Reducers Included: N/A
- Y-Pipe (Crossover) Included: No
- Catalytic Converter(s) Included: No
- CARB E.O. #: NOT LEGAL FOR STREET USE ON POLLUTION CONTROLLED VEHICLES
Warranty: Limited Lifetime Warranty to the original purchaser
Limited Lifetime
