Flowmaster American Thunder Cat-Back Exhaust System for Chevrolet and GMC
Part # 818113
- Dual 2.50-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
- Dual 3.50-inch polished tips exit dual out the rear or side for a custom look
- Includes complete hardware and factory styled hangers in the stock locations for an easy installation
- 50 Series Big Block performance muffler delivers a deep, moderate performance tone and improves exhaust flow
- Flowmaster’s Lifetime Limited Warranty
- Gain up to 4 hp and 11 lbs-ft of torque at the rear wheels
- Fits 147-inch and 157-inch wheelbases
Description
This Flowmaster® American Thunder® cat-back exhaust system for the 2019-2026 Chevrolet/GMC Silverado/Sierra with the 2.7-liter engine is manufactured using durable 409 stainless steel throughout and features dual 2.50-inch mandrel bent pipes for better exhaust gas flow, and an American Thunder muffler is used for a moderate sound level and maximum performance. Gain up to 4 hp and 11 lbs-ft of torque at the rear wheels over stock. This system exits dual out the rear or dual out the side, with dual 3.50-inch polished tips for added style and a custom look. The system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's Lifetime Limited Warranty.
Specifications
| CARB (California) Compliant | Yes |
|---|---|
| Catalytic Converter Included | No |
| Catalytic Converter Quantity | 0 |
| Clamping Type | Flat Band |
| Clamps Included | Yes |
| Exhaust Series | American Thunder |
| Exhaust Tip Color | Silver |
| Exhaust Tip Connection | Clamp-On |
| Exhaust Tip Cut | Angled |
| Exhaust Tip Diameter | 3.50 in |
| Exhaust Tip Edge | Angle Cut |
| Exhaust Tip Finish | Polished |
| Exhaust Tip Intercooled | No |
| Exhaust Tip Length | 13.00 in |
| Exhaust Tip Material | 304 Stainless Steel |
| Exhaust Tip Quantity | 2 |
| Exhaust Tip Resonated | No |
| Exhaust Tip Shape | Round |
| Exhaust Tip Wall | Double Wall |
| Exit Style | Dual Out Side |
| Finish | Natural |
| Gasket Or Seal Included | No |
| Grade Type | Performance |
| Hangers Included | Yes |
| Inlet Diameter | 3.50 in |
| Inlet Type | Flanged |
| Main Piping Diameter | 2.50 in |
| UPC / GTIN | 00090127615539 |
| Warranty | Manufacturer's Limited Lifetime Warranty |
| Year | Make | Model | Submodel | Engine | Note |
|---|---|---|---|---|---|
| 2019 | Chevrolet | Silverado 1500 | LT, RST, WT | 2.7L I4 | Polished Tip Finish |
| 2020 - 2021 | Chevrolet | Silverado 1500 | Custom, LT, RST, WT | 2.7L I4 | Polished Tip Finish |
| 2022 - 2023 | Chevrolet | Silverado 1500 | Custom, Custom Trail Boss, LT, LT Trail Boss, RST, WT | 2.7L I4 | Polished Tip Finish |
| 2024 - 2026 | Chevrolet | Silverado 1500 | Custom, Custom Trail Boss, LT, LT Trail Boss, RST, WT | 2.7L I4 | Polished Tip Finish; Polished Tip Finish, FITS 147-INCH AND 157-INCH WHEELBASES ONLY |
| 2022 | Chevrolet | Silverado 1500 LTD | Custom, Custom Trail Boss, LT, RST, WT | 2.7L I4 | Polished Tip Finish |
| 2019 - 2021 | GMC | Sierra 1500 | Base, Elevation, SLE | 2.7L I4 | Polished Tip Finish |
| 2022 - 2023 | GMC | Sierra 1500 | Elevation, Pro, SLE | 2.7L I4 | Polished Tip Finish |
| 2024 - 2026 | GMC | Sierra 1500 | Elevation, Pro, SLE | 2.7L I4 | Polished Tip Finish; Polished Tip Finish, FITS 147-INCH AND 157-INCH WHEELBASES ONLY |
| 2022 | GMC | Sierra 1500 Limited | Elevation, Pro, SLE | 2.7L I4 | Polished Tip Finish |