For the person who is looking for an aluminized steel cat-back exhaust system with an aggressive exterior tone and moderate interior tone. This American Thunder® system is heavy 16-gauge mandrel-bent aluminized steel tubing for durability and maximum performance. Includes a 70™ Series Big Block II performance muffler for that perfect blend of a deep aggressive exterior sound, with a moderate interior tone that won't drive you out of the cab when having a conversation. The dual 2.50-inch tailpipes clear the factory spare tire and give you two choices of exit locations. Straight out the back for that true dual look, or exiting out each side behind the rear wheels, which is ideal for towing. The system is finished off with a pair of highly polished 304 stainless steel tips embossed with the Flowmaster® name. Designed for an easy fit, these systems include all necessary parts, hardware and instructions for an easy installation you can do at home. Covered by our 3-year Limited Warranty. Notes: Fits 2/4 wheel drive models with standard cab/short bed configuration 117-inch wheelbase.
Features:
- Includes Hangers and Hardware for Easy Installation
- Mandrel-bent 16-gauge Aluminized Steel Tubing
- Dyno Tuned for Maximum Performance
- 3.00-inch Polished Stainless Steel Tips
- Uses the Factory Hanger Locations
- Moderate Exterior Exhaust Tone
- 70 Series Performance Muffler
- Quick and Easy installation
- 3-year Limited Warranty
Fits 1996-1999 Chevrolet Silverado and GMC Sierra 1500 with 5.7L engine using dual flanged catalytic converters, fits 2/4 wheel drive models with standard cab/short bed configuration 117-inch wheelbase.
Installation Notes:
Fits 1996-1999 Chevrolet Silverado and GMC Sierra 1500 with 5.7L engine using dual flanged catalytic converters, fits 2/4 wheel drive models with standard cab/short bed configuration 117-inch wheelbase.
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 |
C1500 |
Base |
1996 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
Chevrolet |
C1500 |
Base |
1997 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
Chevrolet |
C1500 |
Cheyenne |
1996 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
Chevrolet |
C1500 |
Cheyenne |
1997 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
Chevrolet |
C1500 |
Cheyenne |
1998 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
Chevrolet |
C1500 |
Silverado |
1996 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
Chevrolet |
C1500 |
Silverado |
1997 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
Chevrolet |
C1500 |
Silverado |
1998 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
Chevrolet |
K1500 |
Base |
1996 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
Chevrolet |
K1500 |
Base |
1997 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
Chevrolet |
K1500 |
Cheyenne |
1996 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
Chevrolet |
K1500 |
Cheyenne |
1997 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
Chevrolet |
K1500 |
Cheyenne |
1998 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
Chevrolet |
K1500 |
Silverado |
1996 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
Chevrolet |
K1500 |
Silverado |
1997 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
Chevrolet |
K1500 |
Silverado |
1998 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
C1500 |
Sierra SLE |
1996 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
C1500 |
Sierra SLE |
1997 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
C1500 |
Sierra SLE |
1998 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
C1500 |
Sierra SLE |
1999 |
5.7L / 350 / V8 |
|
GMC |
C1500 |
Sierra SLT |
1996 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
C1500 |
Sierra SLT |
1997 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
C1500 |
Sierra SLT |
1998 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
C1500 |
Sierra SLT |
1999 |
5.7L / 350 / V8 |
|
GMC |
C1500 |
Sierra SL |
1996 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
C1500 |
Sierra SL |
1997 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
C1500 |
Sierra SL |
1998 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
C1500 |
Sierra SL |
1999 |
5.7L / 350 / V8 |
|
GMC |
K1500 |
Sierra SLE |
1996 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
K1500 |
Sierra SLE |
1997 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
K1500 |
Sierra SLE |
1998 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
K1500 |
Sierra SLT |
1996 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
K1500 |
Sierra SLT |
1997 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
K1500 |
Sierra SLT |
1998 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
K1500 |
Sierra SL |
1996 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
K1500 |
Sierra SL |
1997 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
K1500 |
Sierra SL |
1998 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
K1500 |
Sierra Special |
1996 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
K1500 |
Sierra Special |
1997 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |
GMC |
K1500 |
Sierra Special |
1998 |
5.7L / 350 / V8 |
With Dual Catalytic Converters. Standard cab/Short bed only. |