Manufacturer of performance exhaust systems, mufflers, performance air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.
| Make | Model | Submodel | Years | Engine |
| Chevrolet | Silverado 1500 | High Country | 2014 | 6.2L / 376 / V8 |
| Chevrolet | Silverado 1500 | High Country | 2015 | 6.2L / 376 / V8 |
| Chevrolet | Silverado 1500 | High Country | 2016 | 6.2L / 376 / V8 |
| Chevrolet | Silverado 1500 | High Country | 2017 | 6.2L / 376 / V8 |
| Chevrolet | Silverado 1500 | High Country | 2018 | 6.2L / 376 / V8 |
| Chevrolet | Silverado 1500 | LTZ | 2011 | 6.2L / 376 / V8 |
| Chevrolet | Silverado 1500 | LTZ | 2012 | 6.2L / 376 / V8 |
| Chevrolet | Silverado 1500 | LTZ | 2013 | 6.2L / 376 / V8 |
| Chevrolet | Silverado 1500 | LTZ | 2014 | 6.2L / 376 / V8 |
| Chevrolet | Silverado 1500 | LTZ | 2015 | 6.2L / 376 / V8 |
| Chevrolet | Silverado 1500 | LTZ | 2016 | 6.2L / 376 / V8 |
| Chevrolet | Silverado 1500 | LTZ | 2017 | 6.2L / 376 / V8 |
| Chevrolet | Silverado 1500 | LTZ | 2018 | 6.2L / 376 / V8 |
| Chevrolet | Silverado 1500 | LT | 2011 | 6.2L / 376 / V8 |
| Chevrolet | Silverado 1500 | LT | 2012 | 6.2L / 376 / V8 |
| Chevrolet | Silverado 1500 | LT | 2013 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | Denali | 2011 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | Denali | 2012 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | Denali | 2013 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | Denali | 2014 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | Denali | 2015 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | Denali | 2016 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | Denali | 2017 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | Denali | 2018 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | SLE | 2011 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | SLE | 2012 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | SLE | 2013 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | SLT | 2011 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | SLT | 2012 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | SLT | 2013 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | SLT | 2014 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | SLT | 2015 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | SLT | 2016 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | SLT | 2017 | 6.2L / 376 / V8 |
| GMC | Sierra 1500 | SLT | 2018 | 6.2L / 376 / V8 |
| Automotive Item Grade | High Performance |
| Body Height (in) | 5 |
| Body Length (in) | 18 |
| Body Width (in) | 8 |
| California Proposition 65 Chemical Name | Chromium (hexavalent compounds) |
| Color | Stainless Steel |
| Emission Code | 5 |
| Finish | Natural |
| Fitment | Universal |
| Inlet Connection Type | Pipe Connection |
| Inlet Diameter (in) | 3.5 |
| Inlet Position | Center |
| Material | 409 Stainless Steel |
| Muffler Series | FlowFX |
| Muffler Type | Absorption / Glasspack |
| Outlet Connection Type | Pipe Connection |
| Outlet Diameter (in) | 3.5 |
| Outlet Position | Center |
| Overall Length (in) | 24, 24 |
| Part Type | Exhaust Muffler |
| Product Type | Street Mufflers |
| Proposition 65 | www.P65Warnings.ca.gov |
| Reversible | Yes |
| Shape | Oval |
| Sound Level | Moderate Sound |
| Type of Muffler | Absorption |
| Vehicle Type | Classic Muscle Car, Truck/SUV, Street Rod, Late Model Muscle Car, Street/Strip |
