Description
Pro Series. This Off-Road Pro Series Cat-Back from Magnaflow provides the most versatility to accommodate nearly every configuration—lifted, lowered, or long travel. Engineered to provide maximum power and minimum weight using the same state-of-the-art manufacturing needed for lifetime warranty quality, this system eliminates the need for a custom fabrication using true bolt-on fitment.
Strength and Style. Made from strong stainless steel with satin finished tips, this Off-Road Pro Series exhaust offers durability and style. The high-flow, straight-through design provides for maximum efficiency as well. Off-road adventures await your 5.3L GMC Sierra; Magnaflow makes them more enjoyable.
Bolt-On Install. The cohesive Magnaflow Turn Down Exhaust Kit includes the muffler, round 3-inch exhaust tip, exhaust tube and band clamps. The bolt-on process is a breeze as Magnaflow designs the system to fit your vehicle without any welding required.
Application. This Magnaflow Off Road Pro Series Cat-Back Exhaust with a Turn Down Tip is designed to be used on the 2014-2018 5.3L GMC Sierra’s with the following cab and box configurations.
- Regular Cab with the Standard Box
- Regular Cab with the Long Box
- Crew Cab with the Short Box
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Magnaflow 17146
CA Residents: WARNING: Cancer and Reproductive Harm
- High-Power, Cat-Back Exhaust for Off-Roading
- Improve Horsepower and Torque
- Throaty, Aggressive Exhaust Note
- Satin Finished Stainless Steel Muffler
- 3” Stainless Steel Tubing
- 3” Satin Turn Down Tip
- High-Flow, Unobstructed Design
- Lifetime Warranty
- Simple, Bolt-On Installation
- Fits 2014-2018 5.0L GMC Sierra Models
| Brand | Magnaflow |
| Exhaust System Type | Cat-Back System |
| Exhaust Tip Finish | No Tips |
| Exhaust Tubing Diameter | 3.00 Inch |
| Exhaust Material | Stainless Steel |
| Exhaust Tip Outlet Style | No Tip |
| Exhaust Exit Location | Turn Down |
| Exhaust Loudness | Aggressive |






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