Flowmaster Super 44 Series Stainless 2.5" Offset In 2.5" Out Universal Muffler 1994-2000-gm-6-5l-non-duramax Upgrade your Duramax LML engine

Upgrade your Duramax LML engine with the HSP Diesel Billet Valve Covers to enjoy improved engine performance

Our stage 5 triple disc billet converters are designed for those who have heavily modified engines or for those that tow heavy weights

2017-2024 GMC Sierra 3500HD

this kit maintains proper CV angles and alignment while boosting ground clearance

Flowmaster Super 44 Series Stainless 2.5" Offset In 2.5" Out Universal Muffler 1994-2000-gm-6-5l-non-duramax Upgrade your Duramax LML engineFlowmaster's Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a rich powerful tone and are the most aggressive, highest performing street muffler we've ever built in a four inch case. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability. Features: Noticeable interior resonance Recent two chamber improvement Race proven Delta Flow technology Deep