Extra Info:

The 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. Monster muffler utilizes spun ceramic, very-high-temperature packing and delivers an authoritative–but never intrusive–exhaust sound. And the 5 inch polished rolled-edge tip has an adjustable clamp for positioning on 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.)

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