Vehicle Fitment
Make | Model | Year |
---|---|---|
Nissan | Frontier | 2005-2019 |
Pathfinder | 2005-2012 | |
Xterra | 2005-2015 |
Make | Model | Year |
---|---|---|
Nissan | Frontier | 2005-2019 |
Pathfinder | 2005-2012 | |
Xterra | 2005-2015 |
Steel Long Tube 3-1 Exhaust Headers by Doug Thorley Headers®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.25". Header Style: Long Tube. These long tube headers will really wake up your 4.0L Nissan motor. The simple bolt-on installation will have you back out on the road in no time towing better and getting where you're going a little faster. They are the ultimate in quality and performance that you can install on your Nissan. All American made, and backed by Doug's lifetime warranty of course! Doug's headers are designed to outflow your stock exhaust manifolds by leaps and bounds. Their headers will increase the power of your motor across the widest RPM band possible. That is the beauty of the design, and that is why they are the best street header available.
Header Material: Steel |
Header Style: Long Tube |
Primary Diameter: 1.625" |
Collector Diameter: 2.25" |
Attachment Method: Factory flange connection |
Collector Attachments: Factory Flange Connection |
Header Style: 3:1 Long-Tube Header |
Material: Steel |
Finish: Silver Ceramic Coated |
Weld Up: No |
Primary Tube Diameter: 1-5/8" |
Primary Tube Gauge: 14 Gauge |
Collector Attachment: Factory Flange Connection |
Collector Diameter: 2-1/4" |
Tuned: No |
Flange Thickness: 3/8" |
Hardware Included: Yes |
Gaskets Included: Re-use Factory |
Reducers Included: No |
Y-Pipe (Crossover) Included: No |
Catalytic Converter(s) Included: No |
Warranty: Limited Lifetime to original purchaser |
Doug's Long Tube Headers replace restrictive stock exhaust manifolds with long primary tubes designed to dramatically increase the flow of exhaust gasses, and reduce power robbing back pressure within the exhaust system. Allowing the engine to breathe more freely improves power and efficiency, making Doug's Long Tube Headers one of the most cost-effective modifications you can make to your vehicle.
For over 50 years, Doug Thorley Headers has been an innovator in the automotive aftermarket. Driven by a passion for performance and superior quality, they are committed to developing 100% American-made products that will reliably deliver maximum horsepower and torque. Doug Thorley Headers® has been pushing the limits of automotive technology since they first invented the Tri-Y header in 1958, and they do it all on American soil.