Boost the performance of your 3rd Gen Toyota 4Runner with the Doug Thorley THY-511-C Shortie Header, designed specifically for 2000–2002 4Runner 2.7L 3RZ-FE models with a single-outlet manifold and no rear-facing EGR system.
Crafted from 14-gauge steel and coated in a heat-resistant silver ceramic finish, this header improves exhaust flow, delivering crisper throttle response, stronger low-end torque, and more usable mid-range power. The shortie design offers easier installation while maintaining compatibility with your factory Y-pipe.
Engineered for everyday driving and off-road adventures, the THY-511-C is 50-state CARB legal (E.O. #D-540-6) and backed by Doug Thorley’s Limited Lifetime Warranty.
Key Specs:
- Fits: 2000–2002 Toyota 4Runner 2.7L 3RZ-FE (No EGR, single-outlet manifold)
- Header Style: Shortie
- Material: 14-gauge steel with silver ceramic coating
- Primary Tube Diameter: 1-1/2"
- Collector Diameter: 2-1/4"
- Flange Thickness: 3/8"
- Attachment: 3-bolt flange
- Includes hardware and reuses factory gaskets
- Y-pipe not included
- CARB E.O. #: D-540-6 (50-state legal)
- Warranty: Limited Lifetime to original purchaser
Performance Benefits:
- Improves throttle response and acceleration
- Enhances low-end torque for better drivability
- Reduces exhaust restriction for more efficient combustion
- Direct bolt-on to factory Y-pipe
- Corrosion-resistant silver ceramic coating
- Made in the USA
Doug Thorley Headers Limited Lifetime Warranty – original purchaser only.
