The Q muffler is standard on the 5400 and 4000R motors. It is all stainless and has our proprietary baffles that maximize air flow.

The exhaust enters this muffler and takes multiple 90 degree turns to quiet the muffler to a lever that is legal in all 50 states.

Its internal deign has been computer designed to evacuate exhaust from one port prior to firing in the other, proving up to 5 percent more horspower.

Maximum performance and improved flow path will generate more torque and power than ever before!

If you really want to move larger boats and loads faster, the Q is for you. If you want to hunt Federally protected marshes and many State managed hunting areas, these mufflers are approved.

To get more quiet power, order the Q muffler from- www.backwaterperformance.com.