2001-2005 Chev/GMC 4″ Cat Back Single Systems 2500/3500, LB7-LLY, OEM 4-Bolt Flange EC-CC/SB-LB-Dually FLO 823
Chev/GMC 4″ Cat Back Single Systems
These Chev/GMC 4″ Cat Back Single Systems are for your 2001-2005 Duramax 6.6L. It fits the 2500/3500 LB7/LLY, Factory 4 bolt flange.
Founded in 1981, FLO PRO Performance Exhaust has been manufacturing and distributing only the most durable quality muffler and exhaust systems for your vehicle. FLO PRO has proven it beats the competition with a louvered pipe that accelerates the exhaust flow through our mufflers. FLO PRO performance mufflers are designed to boost the horsepower generated from your street vehicle. We also specialize in Diesel Performance carrying full systems for virtually every diesel truck. Our products are made from 16ga mandrel bent steel. Offering both Aluminized and T409 Stainless Steel exhaust systems, we have one of the most diverse products on the market. We have direct fit exhaust kits for your Cummins, Duramax or Powerstroke!