Banks Monster 4" Stainless Steel Exhaust for 2015 GM 6.6L Duramax LML 47787

Part# 47787 l UPC# 801279477872
$476.67 Now $429.00
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AVAILABILITY: 4 In Stock



Product Description

4" heavy-duty stainless DPF-back Monster Exhaust system with constant-diameter intermediate pipe and tailpipe. Exclusive CoolCuff design lowers tailpipe temperatures as much or more than stock while simultaneously improving flow and cutting backpressure. Tested and refined by Banks engineers using Computational Fluid Dynamics software, then validated through extensive temperature testing in all areas: before and after the DPF, 6" out from the tip, by the spare tire, shocks, wiring, hoses, and more.

Key Features

  • Extensively tested & validated
  • Unique CoolCuff design
  • 100% stainless steel
  • Huge 6″ × 4″ polished rolled-edge tip
  • Won’t void factory warranty
  • Lifetime Limited Warranty



The system includes Banks’ exclusive 6" X 4" ob-round (patented design) angle-cut rolled-edge tailpipe tip in your choice of polished chrome-over stainless or high-temp black! And to help keep it looking good, there’s a 1/2" air gap to keep heat from tarnishing the finish. An adjustable clamp lets you position it on the tailpipe just right.

Banks’ exclusive CoolCuff design lowers tailpipe temperatures as much or more than stock while simultaneously improving flow and cutting backpressure. So what?? Well, this means more power to your wheels and improved fuel economy to your wallet — That’s what!! Not to mention the safety of people, property and pets passing by your tailpipe.