Standard mufflers are wimpy. Toughen up your truck with a single or dual exhaust stack. Adding this key diesel truck accessory improves your rideâ€™s power and sound. Savor the gains in torque and horsepower while enjoying the mellow rumble of your new smoker. Most of these truck add-ons donâ€™t require welding and many install with simple hand tools. Some assemblies require a quick drill hole, but rolling with these flat black or mirror polished exhaust stacks of strength makes this minor alteration worth it. Whether youâ€™ve got a Duramax, Cummins, or another diesel engine under the hood, weâ€™ve got exhaust stack parts for you. Shop below for pipes, stack kits, adapters, hanger assemblies, clamps, and brackets. Contact us with any questions â€“ weâ€™re here to help. Buy today and receive fast, free shipping.