2011-2015 LML 6.6 Duramax - 4"/5" Downpipe-Back - Exhaust System

Quality Downpipe back exhaust systems available in 4" or 5", made of aluminized steel or stainless steel. Mufflers are also available for these systems for those that don't want it too loud on the freeway. Just like all of Flo-Pro's Exhaust kits, it will come with all the required clamps, pre-weld contour bent hangers, and stronger flanges to help you cruise through the installation process. This system not only sounds great but will improve torque, throttle response, and fuel mileage.

*Use for Off Road ONLY, Closed Circuit Racing, CA Tuning is not responsible for use of this product. Upon Purchasing you are accepting ALL responsibility*

NOTE: 

2015 or 2015.5? 

2015 is a split year. The 2011-2015 downpipe is secured to the turbo-direct pipe using a V-band style clamp. The 2015.5-2016 uses a 3 bolt flange style connection. Be sure to visually verify the clamp style your truck is equipped with.

*Use for Off Road ONLY, Closed Circuit Racing, CA Tuning is not responsible for use of this product. Upon Purchasing you are accepting ALL responsibility*