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Flowmaster 17125 Force II Exhuast Kit, 1988-92 GM 1500 Truck
Flowmaster 17125 Force II Exhuast Kit, 1988-92 GM 1500 Truck

Flowmaster 17125 Force II Exhuast Kit, 1988-92 GM 1500 Truck

88-92 C1500, 89-92 C2500, 88-92 K1500, 88-92 K2500, 3" Tube O.D., Aluminized Steel

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Flowmaster 17125 Force II Exhuast Kit, 1988-92 GM 1500 Truck
Flowmaster 17125 Force II Exhuast Kit, 1988-92 GM 1500 Truck
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We estimate this item will ship on or before May 30th.
Part # 37817125
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 2 business days for Flowmaster to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.


Tube O.D.:
Material Type:
Aluminized Steel
Inlet Size:
Outlet Location:
Single Side
Outlet Size:
MFG. Part #:
GTIN Code:
Heat Shield:
Muffler Quantity:
Muffler Series:
70 Series Big Block
Single or Dual:
Sound Level:
Mild Sound
Exhaust System Type:
Cat-back System
Flat style hangers. With Slip-Fit Cat Converter. Standard cab/Short bed only.


For the person who wants a subtle custom appearance with all the benefits that a Flowmaster Cat-back exhaust system provides. S.O.S. (Single out side) systems are the perfect choice. Force II systems delivers a moderate exterior tone and moderate to mild interior tone, and are suited to 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 and hardware for easy installation.

  • Mandrel bent 16 Gauge Tubing
  • Mild exterior exhaust tone
  • Includes hangers and hardware for easy installation
  • Dyno tuned for maximum performance

Installation Instructions (PDF)


1988-1992 Chevrolet C1500 350 CID/5.7L V8
1989-1992 Chevrolet C2500 350 CID/5.7L V8
1988-1992 Chevrolet K1500 350 CID/5.7L V8
1988-1992 Chevrolet K2500 350 CID/5.7L V8
1988-1992 GMC C1500 350 CID/5.7L V8
1989-1992 GMC C2500 350 CID/5.7L V8
1988-1992 GMC K1500 350 CID/5.7L V8
1989-1992 GMC K2500 350 CID/5.7L V8


Fits 1988 to 1992 Chevrolet and GMC truck on a 1/2 Ton or 3/4 Ton chassis with a 5.7L engine using a slip fit catalytic converter, fits 2 and 4 wheel drive Standard Cab and short bed configuration on a 117 inch wheelbase.
Some parts are not legal for use in California or other states with similar laws/regulations

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