The polished stainless monster muffler features a straight-through 4" diameter flow path with an exclusive expansion chamber to dissipate the annoying midrange exhaust drone that accompanies most straight-through mufflers. The monster muffler utilizes spun ceramic, very-high-temperature packing; more than triples stock flow; and delivers an authoritative exhaust sound with a 6" x 5" polished stainless steel tailpipe tips that sports a rolled edge. Double-walled design with 1/2" air gap keeps heat from tarnishing exterior mirror finish with an adjustable clamp for positioning on the tailpipe. This exhaust system is backed by a Gale Banks Engineering lifetime warranty.

• 81% Better flow than stock 
• Virtually eliminates back-pressure 
• Stainless steel tailpipe tips 
• Muffler features a straight-through 4" diameter flow path
• Delivers authoritative exhaust sound
• Lifetime manufacturer warranty

Upgrade your Ford Super Duty with a Monster Exhaust System from Gale Banks Engineering. You won't be disappointed with the quality of this system that will not only give your truck the quality sound you have been waiting for, but an increase in power as well. Gale Banks Engineering delivers top quality products to provide superior durability and unparalleled performance.

Note: See suggested accessories listed below for Banks Power Elbow Downpipe Assembly to further improve exhaust flow and performance.