For the person who wants a subtle custom appearance with all the benefits that a Flowmaster® Force II® cat-back exhaust system provides, the S.O.S. (Single out side) systems are the perfect choice. The 3.00-inch mandrel-bent aluminized steel tubing flows into a large case dual inlet 50 Series™ Big Block performance muffler that delivers a deep moderate exterior tone while retaining a mild to moderate interior tone. The 3.00-inch tailpipe uses the factory hanger locations for an easy installation and is finished off with a large 3.50-inch polished 304 stainless steel tip. This system is best suited towards customers looking for efficiency improvements without a lot of noise. Especially recommended for towing applications. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts, hardware and is covered by our 3-year Limited Warranty.
Features:
- Includes Hangers and Hardware for an Easy Installation
- Mandrel-bent 16-gauge Aluminized Steel Tubing
- Large 3.50-inch Polished 304 Stainless Steel Tip
- 70 Series Big Block II Performance Muffler
- Mild to Moderate Exterior Exhaust Tone
- Dyno Tuned for Maximum Performance
- Includes a 3-year Limited Warranty
- Uses the Factory Hanger Locations
- Minimal Interior Sound
- Easy Installation
Fits 2001-2003 Chevrolet Silverado and GMC Sierra 1500 HD truck with 6.0L engine, fits 2/4 wheel drive models with crew cab/short bed configuration.
Installation Notes:
Fits 2001-2003 Chevrolet Silverado and GMC Sierra 1500 HD truck with 6.0L engine, fits 2/4 wheel drive models with crew cab/short bed configuration.
About Flowmaster
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.
Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make |
Model |
Submodel |
Years |
Engine |
Fitment Notes |
Chevrolet |
Silverado 1500 HD |
LS |
2001 |
6.0L / 364 / V8 |
Crew cab/Short bed only. |
Chevrolet |
Silverado 1500 HD |
LS |
2002 |
6.0L / 364 / V8 |
Crew cab/Short bed only. |
Chevrolet |
Silverado 1500 HD |
LS |
2003 |
6.0L / 364 / V8 |
Crew cab/Short bed only. |
Chevrolet |
Silverado 1500 HD |
LT |
2001 |
6.0L / 364 / V8 |
Crew cab/Short bed only. |
Chevrolet |
Silverado 1500 HD |
LT |
2002 |
6.0L / 364 / V8 |
Crew cab/Short bed only. |
Chevrolet |
Silverado 1500 HD |
LT |
2003 |
6.0L / 364 / V8 |
Crew cab/Short bed only. |
GMC |
Sierra 1500 HD |
SLE |
2001 |
6.0L / 364 / V8 |
Crew cab/Short bed only. |
GMC |
Sierra 1500 HD |
SLE |
2002 |
6.0L / 364 / V8 |
Crew cab/Short bed only. |
GMC |
Sierra 1500 HD |
SLE |
2003 |
6.0L / 364 / V8 |
Crew cab/Short bed only. |
GMC |
Sierra 1500 HD |
SLT |
2001 |
6.0L / 364 / V8 |
Crew cab/Short bed only. |
GMC |
Sierra 1500 HD |
SLT |
2002 |
6.0L / 364 / V8 |
Crew cab/Short bed only. |
GMC |
Sierra 1500 HD |
SLT |
2003 |
6.0L / 364 / V8 |
Crew cab/Short bed only. |