

4" stainless mandrel-bent system. Dramatically improves flow; virtually no backpressure; lowers EGTs; safely clears spare tire; throaty sound; huge polished ob-round tips.
Monster Diesel Duals 4" exhaust system flows up to 88% better than stock and virtually eliminates backpressure. The streamlined 4" turbine outlet pipe (not required with 325 hp systems), intermediate pipe(s) and 3-1/2" tailpipes are formed of stainless, heavy-wall tubing with constant-diameter bends to maximize airflow and lower exhaust gas temps. The dual tailpipes have 52% more flow area than a single 4" tailpipe.
Banks' polished-stainless Monster muffler features a straight-through 4"-diameter flow-path with an exclusive expansion chamber to dissipate the annoying mid-range exhaust drone that accompanies most straight-through mufflers. The muffler utilizes spun ceramic, very-high-temperature packing, flows up to 129% better than stock, and delivers the signature Monster sound in stereo. Now for the cool part: Banks' exclusive 6" X 5" ob-round polished-stainless angle-cut rolled-edge tailpipe tips (patent pending)! System safely clears spare tire, shocks and brake lines.

| Application | Year Range | Part # |
|---|---|---|
| Monster exhaust, Diesel Duals Std cab, long bed (or crew cab, short bed) | No cat converter |
2003-04 | 48703 |
| Monster exhaust, Diesel Duals Std cab, long bed (or crew cab, short bed) | Cat converter |
2003-04 | 48702 |
| Monster exhaust, Diesel Duals Crew cab, long bed | Cat converter |
2003-04 | 48704 |
| Monster exhaust, Diesel Duals Crew cab, long bed | No cat converter |
2003-04 | 48705 |
| Monster Exhaust, Diesel Duals 325-hp engine | Std cab, long bed (or crew cab, short bed) |
2004-07 | 48706 |
| Monster Exhaust, Diesel Duals 325-hp engine | Crew cab, long bed |
2004-07 | 48707 |
| Monster exhaust, Diesel Duals 325-hp engine | Mega cab |
2006-07 | 48709 |
| Split-Dual Monster exhaust ('04-07 5.9L HO 325hp) (Part #96442) | |
| Split-Dual Monster exhaust ('03-04) (Part #96482) |
“The company [Gale Banks Engineering] is renowned for its turbo designs, gas and diesel exhaust systems, exhaust braking systems, and the quality engineering that goes to each component.”
— 4 Wheel Drive & Sport Utility (Oct '03)