Flowmaster Flow FX Cat-Back Exhaust System For 20-25 GM 2500HD/3500HD 6.6L Gas shifters Backed by Borla’s Million-Mile Warranty

Backed by Borla’s Million-Mile Warranty for reliability

The rotating assemblies are balanced to strict OEM tolerances and 100% end-of-line tested through the full RPM range

But improved performance is at the heart of the Delta Joint PRO

3L Powerstroke 6-Speed

Flowmaster Flow FX Cat-Back Exhaust System For 20-25 GM 2500HD/3500HD 6.6L Gas shifters Backed by Borla’s Million-Mile WarrantyThis Flowmaster Flow FX cat back exhaust system for the 2020 2025 GM 2500HD 3500HD trucks with the 6. 6 liter gas engine is manufactured using durable 409 stainless steel throughout and features 3. 50 to dual 3. 00 inch mandrel bent pipes for better exhaust gas flow, and a Flow FX "straight through" muffler is used for a moderate sound level and maximum performance. Maximum increases on the dyno revealed +9 hp and +10 lb ft at the rear wheels. This