Description

Fits

Year	Make	Engine
2001 - 2004.5	GM	LB7, LLY, with 6.6L Duramax

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

The FLO 601NM is a 5-inch downpipe back exhaust for 2001 - 2004.5 Duramax trucks. It replaces the restrictive exhaust with a high-flow 5-inch straight pipe system without a muffler, ideal for race use. Like all Flo-Pro exhaust kits, it comes with necessary clamps, pre-welded contour bent hangers, and stronger flanges for easy installation. This exhaust not only sounds awesome but also improves your truck's mileage, torque, and throttle response!

Part Number: FLO-601NM

Features

• 5-inch downpipe back single exhaust system
• No muffler
• Aluminized steel and stainless steel options
• Single side exit
• Easy install - mounts to OE hangers

Using this FLO 601NM exhaust is a breeze. First, make sure your truck is from 2001 - 2004.5 and has a 6.6L Duramax engine. You can choose between aluminized steel and stainless steel. The kit comes with all the clamps, hangers, and flanges you need, so just mount it to the OE hangers. When installing, double - check all the connections to ensure a tight fit. As for maintenance, regularly check the clamps for tightness. If you notice any rattling, it might mean a clamp is loose. In terms of the exhaust itself, if you go for the aluminized steel option, it may show some signs of rust over time. A simple rust - inhibitor spray can help protect it. The stainless steel option is more corrosion - resistant, but still, give it a visual inspection from time to time. This exhaust is designed for race applications, so enjoy the improved performance and great sound it offers!