Options and customization are important to AWE, just like it is to you. AWE engineered bolt - on mid pipes to pair with your Tread Edition Axle - back for additional sound tuning and performance. Replacing the factory mid section is a robust 3 stainless steel mid pipe available as resonated or non - resonated. For drivers looking to really uncork all of their Wranglers aggression should consider the non - resonated mid pipe. AWE's No CEL Guarantee, Perfect Fitment Guarantee, and Lifetime Warranty come standard.