2001-2016 6.6L LB7 LLY LBZ LMM LML Chevy&GMC Duramax Exhaust Up-Pipe 2500hd Long tube headers are better

Long tube headers are better for high-RPM performance

5L NON-Turbo enhances exhaust flow

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Say goodbye to excessive soot deposits in your intake manifold

towing heavy loads

2001-2016 6.6L LB7 LLY LBZ LMM LML Chevy&GMC Duramax Exhaust Up-Pipe 2500hd Long tube headers are betterDynoVox 2001 2016 Chevy & GMC 6. 6L LB7 LLY LBZ LMM LML Duramax Exhaust Up Pipe Upgrade your 2001 2016 Chevy GMC 6. 6L Duramax with DynoVoxs high performance exhaust up pipe. Designed for LB7, LLY, LBZ, LMM, and LML engines, this up pipe improves exhaust flow, reduces turbo lag, and enhances overall performance. Made from 304 stainless steel, it ensures durability and resistance to extreme heat. Easy to install and backed by 5 year warranty, this up