Chevy Tahoe 2010-2013, Steel Long Tube 4-2-1 Tri-Y Exhaust Header Kit with Y-Pipes by Doug Thorley Headers®. Collector Outlet Diameter: 2.5". Emissions: CARB compliant. Header Style: Long Tube. 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.
Fitment notes: This is a CARB compliant part, legal for use on vehicles built to meet CARB standards and/or registered in California and other states which follow CARB standards.
|Header Material: Steel|
|Header Style: Long Tube|
|Collector Diameter: 2.5"|
|Emissions: CARB compliant|
|Header Style: 4:2:1 Long-Tube Tri-Y|
|Finish: Silver Ceramic Coated|
|Weld Up: No|
|Primary Tube Gauge: 14 Gauge|
|Collector Diameter: 2-1/2"|
|Flange Thickness: 3/8"|
|Bolts and/or Studs Included: Yes|
|Gaskets Included: Yes|
|Reducers Included: N/A|
|Y-Pipe Inlet Diameter: 2-1/2"|
|Catalytic Converter(s) Included: No|
|Quantity: Sold as a Complete Kit|
|Warranty: Limited Lifetime to original purchaser|
- High quality at an affordable price
- Expertly made from premium materials
- Built to match your exact requirements
The Tri-Y Header is designed with an emphasis on maximum low and mid range torque, while making ample horsepower throughout the RPM range. The 4:2:1 Tri-Y header design makes it the ideal choice for trucks, tow-rigs, RV's and most street applications. The collector design makes this header one of Doug's most efficient, which means you'll see improvements both on the dyno and at the pump.
A Doug Thorley Headers original design, the 4:2:1 collector specification on the Tri-Y Header is engineered to match your engine's firing order and thereby maximize exhaust scavenging - the complete expulsion of gasses on the exhaust stroke. The Tri-Y design creates more usable power and torque than any other header design, making it the header of choice for enthusiasts who want the most bang for their buck.
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.