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Pacific Performance Engineering replacement high-flow up-pipes allow as much as 53 percent more flow than stock pipes, and they're a direct bolt-on to your factory manifolds. Diesel engines, even stock, produce high temperatures and pressures. OEM up-pipes eventually fail from constant temperature and pressure fluctuation. Unlike factory parts, these OE replacement high-flow up-pipes are manufactured from 11-gauge 304 stainless steel. They include internally-sleeved bellows that can take the abuse of high temperature and high pressure. Order the model recommended for your application.
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$224.99
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$269.99
Better than stock, Pacific Performance Engineering exhaust downpipes increase flow and performance on your Duramax. PPE crafts them with smooth bends from long-lasting 304 stainless steel. They include titanium exhaust wrap and clamps for a secure installation. Remove your crushed oval-shaped stock downpipe and replace it with a Pacific Performance exhaust downpipe for unrestricted power! Order the model recommended for your application.
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$134.99
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$170.99
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