Banks (48703) Monster exhaust, Diesel Duals Std cab, long bed (or crew cab, short bed) | No cat converter 2003-04
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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 stainless angle-cut rolled-edge tailpipe tips--in your choice of polished chrome-over stainless or high-temp black! And to help keep them looking good, there's 1/2" air gaps to keep heat from tarnishing the finish. Adjustable clamps let you position them on the tailpipes just right. System safely clears spare tire, shocks and brake lines.