QTP 2.50 Inch Reverse Screamer Muffler Short Case2. 50 in. Reverse Screamer Muffler Short Case with QTEC25. With the success of our Electric Cut Out we took it to the next level, The Screamer. A dual mode muffler with a single inlet with a dual outlet. One outlet is a straight pipe with a valve at the end on a 360 degree floating flange for total adjust ability. When the valve is open you get the loud and free flowing exhaust system. Close the valve and the exhaust gases are diverted through the