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Manifolds, Up-Pipes, & Turbo Direct-Pipes (LLY)

Manifolds, direct pipes (downpipes) & up-pipes are an awesome way to get the most out of your exhaust system.  Help get the most out of your Duramax LLY by upgrading the exhaust and then these components as well.  This is going to help you get every last horsepower out of your Duramax LLY, keep your EGTs down, and get quicker spools out of your turbo.