Exhaust Up-Pipe for 2001-2016 6.6L Chevrolet Chevy GMC Duramax LB7 LLY LBZ LMM LML | SPELAB

Fitment:

• 2001-2004 Chevrolet GMC LB7 6.6L Duramax Diesel
• 2004.5-2005 Chevrolet GMC LLY 6.6L Duramax Diesel
• 2006-2007 Chevrolet GMC LBZ 6.6L Duramax Diesel
• 2007.5-2010 Chevrolet GMC LMM 6.6L Duramax Diesel
• 2011-2016 Chevrolet GMC LML 6.6L Duramax Diesel

Up-pipes and down-pipes – what do they do?

Up-pipe is a piping that connects the exhaust manifold with the turbo. Exhaust gases enter the turbo from the up-pipe. Down-pipe is a piping that connects the turbo with the rest of the exhaust pipe. Exhaust gases leave the turbo from the down-pipe.