Description
Superior Exhaust. There’s plenty of power hidden in your 2009-2013 5.3L GMC Sierra, imprisoned by the backpressure of accumulated exhaust fumes – and the aFe Mach Force XP 3-inch Split Side Exit Cat-Back Exhaust with Polished Tips is designed to uncage that beast and let your system breathe free. The Mach Force Cat-Back intensifies exhaust removal by 29% through its smooth mandrel bends and performance muffler, while deepening your Sierra’s sound to a throaty, aggressive exhaust note. The throttle grows more responsive with backpressure eased, and your truck gains a dyno-tested +17 ft/lbs of torque and +14 horsepower – along with the savage styling of black-badged 4.5″ polished tips.
Heavy-Duty System. Built to last, the aFe Mach Force Cat-Back incorporates T-304 stainless steel for the tip and T-409 stainless for the muffler and 3-inch mandrel-bent tubing, both nearly rust-proof grades. An extension tube for long bed variants is included, along with the hardware, 360° band clamps, and bayonet hangers needed for bolt-on installation. The part is manufactured in the United States and comes with a 2 year limited warranty from aFe.
Application. The aFe Mach Force XP 3-inch Split Side Exit Cat-Back Exhaust with Polished Tips is designed to fit the 2009-2013 5.3L GMC Sierra’s with the following cab and box configurations.
- Regular Cab with the Standard Box
- Regular Cab with the Short Box
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AFE 49-44071-P
CA Residents: WARNING: Cancer and Reproductive Harm
- Cat-Back Exhaust
- T-409 Stainless Steel Tubing and Muffler
- 3 in. Mandrel-Bent Tubing
- Polished 4.5 in. Stainless Steel Exhaust Tips
- Exits Behind Each Rear Tire
- 2-Year Warranty
- Fits 2009-2013 5.3L GMC Sierras
- Designed to fit Regular Cab Models Only
| Brand | AFE |
| Exhaust System Type | Cat-Back System |
| Exhaust Tip Finish | Chrome, Polished |
| Exhaust Tubing Diameter | 3.00 Inch |
| Exhaust Material | Stainless Steel |
| Exhaust Tip Outlet Style | Dual |
| Exhaust Exit Location | Both Sides – After Tire |
| Exhaust Loudness | Moderate |






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