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TUNE YOUR SENSITIVITY
Boot 1: 3"
2006-2007 Duramax 6
NoteFull Support Package: This package provides access to all tunes for as long as we support this vehicle
2017-2023 Duramax 6.6L Downpipe 3.5'' new TUNE YOUR SENSITIVITY2017 2023 Duramax 6. 6L Downpipe Polar Diesel downpipes are designed to concur the elements, made from T304 Stainless Steel, our kits provide the quality your truck deserves. Our downpipes are designed with a hassle free, easy installation in mind! With our downpipe you can count on reduced EGTs, improved fuel mileage, proper exhaust flow and of course increased horsepower and torque! Features T304 Polish Stainless Steel Billet Machined Flange Heat