[dmcmahan60]

Originally Posted by caSStro18

The NPP exhaust will always have quad tips due to the valves. The diffuser will be different to accommodate the two tips per side. If you are going from dual tip to quad tip you have two options...cut the diffuser or buy a new one designed for the quad tips. I have the AWE touring dual tip axleback because I did not have the NPP and I didn’t want to buy a new diffuser or cut my current one because I think that’s a pretty ugly way of doing it. I like the look of the quad tips though! If you have the NPP exhaust and want to keep it, AWE systems are not an option. BTW, I got my AWE Touring axleback from RDP Store for just over $600 shipping included. Sound is incredible and there is absolutely no drone at any RPM.

Glad you like your exhaust setup buddy