Description

Fits

Year	Make	Engine
2017 - 2019	GM	L5P 6.6L Duramax with 4 - bolt flange

Flo - Pro Exhausts fit all wheelbase and cab configurations unless otherwise stated.

The FLO - 680 is a top - notch 5" Downpipe Back Exhaust System by FLO - PRO for 2017 - 2019 L5P Duramax vehicles. If you want to ditch your stock parts and upgrade to high - performance, high - flow 5" piping from the downpipe back, this is the ideal kit. Like all Flo - Pro Exhaust kits, it comes with all the necessary clamps, pre - weld contour bent hangers, and stronger flanges for an easy installation. You'll enjoy better fuel mileage, more torque, and a great - sounding 6.6L engine!

Part Number: FLO - 680

Features

• 5" Downpipe Back Exhaust
• Comes with a High - Flow Muffler
• Boosts Torque and Fuel Mileage
• Available in Aluminized or Stainless Steel

Notes

• These kits only fit models with the OEM style 4 - bolt flange off the turbo direct pipe.

Using this FLO - 680 exhaust system is straightforward. First, gather all the components included in the kit, which are the 5" downpipe back exhaust, high - flow muffler, clamps, pre - weld contour bent hangers, and stronger flanges. Make sure your vehicle is a 2017 - 2019 L5P Duramax with an OEM style 4 - bolt flange off the turbo direct pipe. Then, remove the stock exhaust components carefully. Install the new exhaust system using the provided clamps, hangers, and flanges. It's designed to fit all wheelbase and cab configurations, so the process should be smooth. When it comes to maintenance, regularly check the clamps to ensure they are tight. If you chose the aluminized option, keep an eye out for signs of rust and clean the exhaust as needed. For the stainless - steel version, it's more resistant but still benefit from a periodic wipe - down to keep it looking good. Enjoy the improved fuel mileage and increased torque that this exhaust system brings!