Enhancing performance of the 6.6L Duramax L5P diesel engine that powers '17-to-current GMC and Chevrolet trucks is not an easy proposition. General Motors' calibration engineers have made it very ...
Now that you've read the exhaust theory story and know everything about pipes and tubes, here is a list of where to buy your new system. All of these products are an upgrade over your existing exhaust ...
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