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  • LLY / LBZ / LMM Downpipe

Finally, an affordable high flowing down pipe for the LLY Duramax.

This is a true mandrel bent 3" diameter, ceramic coated, and heat wrapped. It is made in the USA right here in our shop.

Expect better all around performance & lower EGT's from this!

This pipe does not have a support bracket. We do not believe it is needed.

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LLY / LBZ / LMM Downpipe

  • $129.95

Due to California State law Profab Performance Products are not for sale or use in California. 

Due to software limitations our online ordering system is unable to exclude orders originating in the state of California. Our system will currently accept orders and take payments from California addresses but those orders will not be shipped.  All orders are fulfilled manually and our staff has been instructed to cancel and refund any order with a California billing or shipping address.  There are no exceptions to this rule so please don't ask or place orders.