Shorty Exhaust Header for GMC Yukon (2007-2013) 6.0L 6.2L

Direct-Fit Stainless Shorty Exhaust Headers for 2007-2013 GMC Yukon (GMT900)

What it Does: The Shorty Exhaust Header replaces the restrictive factory cast-iron exhaust manifolds on the 2007-2013 GMC Yukon to reduce backpressure, optimize exhaust scavenging, and improve low-to-mid range torque output.

The Stock GMC Yukon Exhaust Manifold Limitation

Factory GMT900 cast-iron exhaust manifolds are engineered for low-cost mass production, featuring rough internal casting surfaces and pinched, uneven runner geometry that disrupts exhaust gas velocity. Due to severe thermal expansion cycles between the aluminum cylinder heads and dense cast iron, stock manifolds frequently warp, crack, or shear off rear exhaust manifold mounting bolts, creating persistent exhaust leaks and elevated cylinder head temperatures.

The Engineering Solution

Fabricated from 16-gauge (1.5mm) mandrel-bent 304 stainless steel, these short-tube headers maintain uniform 1-5/8-inch primary runner diameters into a high-flow 2-1/2-inch collector. Thick 3/8-inch (9.5mm) laser-cut head flanges are hydraulically flattened to guarantee a true, warp-resistant mechanical seal against the Gen IV LS cylinder head. Precision TIG welds resist thermal fatigue and cracking under sustained towing loads, while the shorty configuration retains factory catalytic converter placement.

What's Included

• 2 Shorty exhaust headers (driver and passenger side)
• 2 Header-to-cylinder-head gaskets
• 2 Collector (outlet) gaskets
• Mounting bolts and hardware set

Technical Specifications

Compatibility

• 2007-2013 GMC Yukon 6.0L, 6.2L
• 2007-2013 GMC Yukon XL 1500 6.0L, 6.2L
• 2007-2013 GMC Yukon XL 2500 6.0L, 6.2L
• 2007-2013 GMC Yukon Denali / Yukon XL Denali 6.2L

Frequently Asked Questions & Fitment Warnings

Does this fit the GMT900 Yukon?

Yes, this is a direct bolt-on fit for the 2007-2013 GMC Yukon platform equipped with the 6.0L or 6.2L Gen IV V8 engines. It is not designed for 4.8L or 5.3L engine configurations.

Is an ECU tune required after installing these shorty headers?

No ECU recalibration is required because the factory primary oxygen sensors and downstream catalytic converter positions remain in their original factory locations.

The GMC Yukon Heavy-Duty Standard

Engineered to withstand severe duty cycles and high thermal stress during heavy payload and towing applications, these headers replace crack-prone cast iron with resilient stainless construction for durable, long-term exhaust reliability.