Banks Power Monster Exhaust System, 5in DPF-Back, SideKick Tip
Fits 2011-2016 6.6L Duramax V8 (LML)
We earn a commission if you buy through links on this page. Prices are the same for you. Full disclosure
Price tracked 12 times since Jul 25, 2026 across the stores we check daily: low $599, high $599, currently $599.
Requires: Fits Double Cab Short/Long Bed, Crew Cab Short/Long Bed and Dually DRW. Does NOT fit Single Cab Long Bed. Sierra 3500 HD listed by Banks only through 2015; 2016 3500HD requires additional NOx sensor bung PN 52255, sold separately, professional welding required.
A 5-inch stainless steel DPF-back exhaust with a side-exit SideKick tip for the LML-era Sierra HD, leaving the DPF and DEF/SCR emissions hardware stock.
why this one — One part number covers both the 2011-2014 GMT900 and 2015-2016 K2 Sierra HD bodies, and unlike the newer Banks kits it does fit dually trucks. Honest downsides: it does not fit Single Cab Long Bed at all, Banks lists Sierra 3500 HD coverage only through 2015, and a 2016 Sierra 3500HD needs an extra NOx sensor bung (PN 52255) welded in at your own cost.
Banks publishes no quantified hp/tq figure for this SKU. The value proposition is backpressure and regen-temperature reduction, not horsepower.
Questions about this category
No published gain figure for this part, and nothing here is a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See how we check a price and our affiliate disclosure.