Aero Exhaust AT4040XL Aero Turbine Muffler RETRO V8 *THIS PRODUCT IS STRICTLY A

*THIS PRODUCT IS STRICTLY A DIAGNOSING TOOL AND IS NOT INTENDED TO BE LEFT INSTALLED

T6 or compound turbo set ups

bearing or seal failure

The LLY fuel system shared the same pressure readings and could also be changed with tuning adjustments

updated vane pack

Aero Exhaust AT4040XL Aero Turbine Muffler RETRO V8 *THIS PRODUCT IS STRICTLY AThe Aero Exhaust AT4040XL Aero Turbine Resonated Performance Muffler gives your truck an aggressive, yet more mild tone due to the resonated design. Built for high output diesel engines, the Aero Turbine Performance Mufflers feature a patented airfoil technology that increases horsepower, torque, flow and also reduces temperatures. The AT4040XL is the only performance muffler that will give you the performance of a full system at a fraction of the