Flowmaster 50 Series Delta Flow 2.25" Offset In 2.25" Out Universal Muffler 2011-2015-6.6l-lml-duramax By designing their coolant bypass

By designing their coolant bypass kit with a temperature activated thermostat

2007-2018 Jeep Wrangler JK Gas

and even cause air leaks in your fuel system

Rear 2" rear block & u-bolt kit to retain tail high stance

and is designed to minimize restriction with one Clean line from the throttle body to the air box

Flowmaster 50 Series Delta Flow 2.25" Offset In 2.25" Out Universal Muffler 2011-2015-6.6l-lml-duramax By designing their coolant bypassThe three chamber design utilizes Flowmaster's Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. Features: Moderate Sound Mild interior resonance Excellent choice for Street Rod cars and trucks Improved