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64mm (actual measurement 63
and performance
replacing it with a new machined aluminum adapter that features a double o-ring seal on the OUTSIDE of the oil pan
water will bypass into your injectors
aiding the injection system by reducing the amount of work your factory injection pump has to perform
PPE High Flow Exhaust Manifolds with Up-Pipes-50 State Legal 01-04 GM 6.6L Duramax LB7 MACS-513208 64mm (actual measurement 63Introducing high flow performance for your Duramax that is 50 state legal! The factory manifolds and up pipes on the GM Duramax's have several design flaws that reduce potential exhaust flow. One of the larger draw backs is that the drivers side manifold has a large indentation in it for excessive clearance tolerances that is unnecessary. Secondly, the factory up pipes are weak and prone to warping when sustained heat is prevalent. Replacing your
US$ 199.50
US$ 11.99
US$ 324.50
