Profab Downpipe 04.5-10 GM 6.6L Duramax

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! 

LLY, LBZ, LMM Style downpipe

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