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Catted Longtubes + Pulley and Tune

Still Intense

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So I'm planning on doing a pulley and tune and aluminum driveshaft on the car. With the pulley and tune, how much additional rear wheel horsepower can I expect with a set of catted long tube headers, while keeping the remainder of the exhaust stock? All would be installed at the same time, in other words the tune would be done with the headers in place. Also have already put in a JLT cold air intake tube and done the rear suspension.


What catted headers are you guys liking these days?



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