FLO-PRO Downpipe Back Single | 2001-2004.5 GM 2500/3500 6.6L Duramax

Upgrade your 2001–2004.5 GM 2500HD/3500HD 6.6L Duramax with a FLO-PRO Downpipe-Back Single Exhaust System. Canadian-made and direct-fit, FLO-PRO exhausts are engineered to maximize exhaust flow, improve turbo response, and deliver an aggressive exhaust tone — whether you're towing, daily driving, or pushing performance limits.

• Fits 2001–2004.5 GM 2500HD/3500HD 6.6L Duramax (LB7/LLY)
•  downpipe-back single exhaust system
• Available in 16-gauge Aluminized Steel or Stainless Steel construction
• With Muffler or No Muffler options
• Improved exhaust flow & turbo response
• Direct-fit installation
• For off-road use only where applicable