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Tech: Shelby GT350 Exhaust Upgrade

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By EditorTurner

Tech: Shelby GT350 Exhaust Upgrade

Long Revision

Lethal Performance upgrades its GT350 project with Kooks exhaust

By Steve Turner

Pushing the performance of its project cars is Lethal Performance’s calling card. Soon after leaving Weikert Ford in a cloud of smoke, Team Lethal embarked on an aggressive modding plan for its Shelby GT350 project car, including bolt-on upgrades, a 10-second run at the drag strip and, eventually, a Whipple supercharger.

When we last left the Lethal Performance Shelby GT350 the car had received a 2.9-liter blower from Whipple Superchargers and developed over 819 horsepower and 605 lb-ft of torque. That was through the stock manifolds, a Lethal Performance mid-pipe and the stock cat-back system.
When we last left the Lethal Performance Shelby GT350 the car had received a 2.9-liter blower from Whipple Superchargers and developed over 819 horsepower and 600 lb-ft of torque. That was through the stock manifolds, a Lethal Performance mid-pipe and the stock cat-back system.

When you start pushing that much air through a high-winding engine like the Voodoo 5.2-liter engine, maximizing the airflow is crucial. Lethal started out by opening up the exhaust with a cat-back exhaust, but the time had come to open it all the way up by replacing the factory manifolds with full-fledged long-tube headers and a supporting exhaust from Kooks Headers and Exhaust.

For the full story, click here to visit the thread on our forum.

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