Description

Fits

Year	Make	Engine
2015.5 - 2016	GM	Duramax with 3 - Bolt Flange at Downpipe

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

The FLO - 871NM is a top - notch 4 - inch Downpipe - Back Exhaust System by FLO - PRO for 2015.5 - 2016 6.6L Duramax trucks. If you want to ditch your stock parts and upgrade to high - performance, high - flow 4 - inch piping from the downpipe back, this is the ideal kit! Like all Flo - Pro exhaust kits, it comes with all the necessary clamps, pre - welded contour - bent hangers, and stronger flanges for an easy installation. You'll enjoy better fuel mileage, more torque, improved flow, and lower EGTs. Plus, your 6.6L will sound amazing!

Part Number: FLO 871 NM

Features

• 4 - inch Downpipe Back Single Exhaust system
• No Muffler, Straight Pipe
• Available in Aluminized or Stainless Steel
• Single Side Exit
• Easy to install, mounts to OE Hangers

Notes

• Some older Duramax trucks have a V - Band Style Clamp instead of the 3 - bolt flange. This kit only works with the 3 - Bolt Flange Style off the turbo direct pipe.

Using this FLO - 871NM exhaust system is easy. First, make sure your 2015.5 - 2016 6.6L Duramax truck has a 3 - bolt flange at the downpipe. If so, you can start the installation. The kit comes with all the clamps, hangers, and flanges you need. Just mount it to the OE hangers and you're good to go. When it comes to maintenance, regularly check the clamps and hangers to make sure they're tight. If you choose the aluminized steel option, it may rust over time, so keep an eye on it. The stainless steel option is more rust - resistant. Also, be aware that this kit won't work with trucks that have a V - Band Style Clamp instead of the 3 - bolt flange.