GMC Sierra 2500HD/3500HD parts.

pairs with: Intake, Suspension

why this one: The only 5-inch DPF-back system Banks publishes for the 2024-2026 Sierra HD, and its Exhaust Pressure Control Module is a documented SKU-specific feature that prevents false power-derate codes rather than a generic pipe swap. Honest downside: Banks states it does not fit Dual Rear Wheel trucks, so Sierra 3500HD dually owners are excluded.

also carried: Performance Truck Products

pairs with: Intake, Suspension

why this one: Banks quotes 89% less backpressure at the DPF and a 15% lower exhaust temperature during regen for this exact part number, and the side-exit SideKick tip keeps the pipe clear of a bumper-mounted hitch. Honest downsides: it is Single Rear Wheel only, and Banks was showing it backordered when the price was checked.

also carried: Diesel Power Products

pairs with: Intake, Suspension

why this one: This is the only Banks HD exhaust in this lane that covers dually trucks, DCSB/DCLB/CCSB/CCLB plus DRW, so Sierra 3500HD dually owners are not locked out the way they are on the 2020-2022 and 2024-2026 kits, and it works with both stock and aftermarket fifth wheels. Honest downside: the obround tip is a plainer look than the side-exit SideKick used on the newer kits.

also carried: Diesel Power Products

pairs with: Intake, Suspension

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.

also carried: Performance Truck Products

pairs with: Taillight

why this one: This is a GMC-specific SKU (PN 111482, $681) distinct from the visually similar Chevrolet-badged part (PN 111480, $582) sold for the same generation - written as its own row per this catalogs convention of separate rows for genuinely distinct make-specific SKUs rather than assuming cross-fitment.

pairs with: Taillight

why this one: GMC shapes its HD headlight housing differently from Chevrolet, so the Silverado plank-style light does not fit a Sierra at all; this is ANZO Sierra-specific C-bar equivalent and it is the cheaper of ANZO two black Sierra C-bar options. Honest downsides: it suits base and SLE trims with plain halogen headlights only, and it will not fit a truck that came with factory LED daytime running lights or HID, which rules out most higher trims.

pairs with: Cat-Back, Tire

why this one: The only Momentum HD part number aFe lists on its own 2011-2016 LML Silverado/Sierra HD platform page, and it is backed by a real dyno chart (+22 hp, +57 lb-ft) rather than a marketing estimate. Honest downside: the Pro 10R filter is oiled, so it needs periodic cleaning and re-oiling instead of a throwaway swap, and over-oiling can foul the sensor.

also carried: Thoroughbred Diesel

pairs with: Cat-Back, Tire

why this one: The current Momentum HD kit aFe builds for the 2020-2026 Sierra HD, with a published dyno figure (+16 hp, +44 lb-ft) and a stated 710 CFM flow number. Honest downsides: the gain is smaller than the older LML kit claims, and aFe marks this one not for sale or use in California, so a CA-registered Sierra should skip it.

also carried: Thoroughbred Diesel

pairs with: Tire, Wheel

why this one: The cheapest honest way to level a 2020-2026 Sierra HD, because it re-indexes the factory torsion bars rather than replacing suspension, and ReadyLift rates it for up to 35-inch tires on 20x9 wheels. Honest downsides: it does not fit the AT4X, it needs ReadyLift own torsion-key unloading tool (PN 66-7822B) sold separately, and ReadyLift warns Sierra fender wells vary from Silverado so clearance may differ.

also carried: Switch Suspension

pairs with: Tire, Wheel

why this one: Buy this instead of the base kit only if your factory shocks are already worn, because leveling a truck on tired shocks is what makes a levelled truck ride badly. Honest downside: it is roughly six times the price of the plain torsion-key kit for the same 2 inches of lift, and ReadyLift notes Sierra and Silverado fender openings differ so some trimming may be needed on larger tires.

pairs with: Suspension

why this one: The right fix if you have already levelled a 2011-2019 Sierra HD and the factory upper arms are binding or eating ball joints, and one part number covers both the GMT900 and K2 bodies plus 2WD and 4WD. Honest downsides: ReadyLift has not validated Single Cab fitment or drivability, it is a 6-hour job, and it needs an alignment afterward that is not in the price.

pairs with: Headlight

why this one: This is the one ANZO taillight whose own fitment list names the GMC Sierra 2500HD/3500HD directly for these years, so you are not gambling on a Chevrolet part fitting. Honest downsides: ANZO restricts it to DUALLY trucks only, so a single-rear-wheel Sierra HD owner needs a Sierra-specific C-bar unit instead, and it will not work with factory LED taillights.

also carried: Beefcake Racing

pairs with: Headlight

why this one: At around a hundred dollars this is by far the cheapest way to modernize the back of a GMT900-era Sierra HD, and ANZO own fitment list names Sierra 1500, 2500HD and 3500HD on the one part number. Honest downside: it is a single small lamp, so it does nothing for your main taillights and will look mismatched next to faded factory units.

pairs with: Headlight

why this one: This is the Sierra-specific taillight ANZO actually builds for the 2020-2025 HD body. The Silverado full-LED unit (PN 311418) does not list any Sierra fitment, so this is the correct part rather than a Chevrolet crossover, and the smoke lens hides the reflectors when the lights are off. Honest downsides: it fits factory halogen taillights only, and at $559 it is the most expensive ANZO taillight in this catalog for the platform.

also carried: Beefcake Racing