Product Description:

The Banks 4-inch Monster exhaust cat-back system flows up to 122% better than stock and virtually eliminates backpressure. Formed of stainless, heavy-wall tubing with constant-diameter bends to maximize airflow and lower exhaust gas temps. Banks replaces the factory’s restrictive muffler with a polished-stainless Monster muffler featuring a straight-through 4-inch diameter path that flows up to 129% better than stock.

The Banks-designed expansion chamber dissipates the annoying mid-range exhaust drone that accompanies most straight-through mufflers. The monster muffler utilizes spun ceramic, very-high-temperature packing and delivers an authoritative–but never intrusive–exhaust sound.

As well as the 5-inch polished rolled-edge tip has an adjustable clamp for positioning on the tailpipe. Get it in your choice of chrome-over stainless or high temp black! (And to help keep it looking good, there’s a 1/2 inch air gap to keep heat from tarnishing the finish.)

Fits:

• 2004-2007 Dodge 5.9L Cummins

Features:

• Mandrel bent Stainless Steel construction
• Virtually eliminates backpressure
• Lowers exhaust gas temps
• Dramatically improves flow
• Maximum Airflow
• 4-inch constant-diameter system
• Flows up to 122% better than stock
• Cat-Back System
• 5-inch CHROME tip
• Fits 325-hp Engine Crew cab, Long bed