Banks Power Monster Exhaust System2. 5in mandrel bent stainless steel system. Improves flow by removing factory resonators and restrictive OEM muffler. Gain rear end ground clearance while reducing exhaust system weight by over 36 percent. Strong authoritative growl without highway drone. The Banks Monster Exhaust provides an aggressive growl under load without annoying highway drone. With a full 2. 5in mandrel bent design, the Monster Exhaust removes the under body resonator and