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2011-2015 Duramax Flo Pro 4" CAT Delete Pipe


2011-2015 Duramax 4" CAT Delete Pipe (FLO-11111)

Fits: 2011-2015 GM LML w/ 6.6L Duramax Diesel

The FLO-11111 by Flo-Pro replaces your stock catalytic converter on your 2011-2015 LML with a high-flow 4" race pipe. By allowing your exhaust to flow more freely you'll receive better throttle response and lower EGTs.


  • 4" Aluminized Steel
  • Deletes OE Catalytic Converter
  • Lower EGTs
  • Down-pipe to DPF

Part Number: FLO 11111