# Gibson 88-89 GMC C3500 Sierra 7.4L 3in Cat-Back Single Exhaust - Stainless

Gibsons best performing exhaust is perfect for improved acceleration, maximum hill climbing, towing and passing power. Exits behind the rear tire near stock location with a polished Stainless Tip. Dyno tested results have proven increases as much as 32 horsepower and 60ft lbs of increased torque. Hassle free, bolt-on installation with professional looking results.

-   Incl. Hardware/Factory Style Hangers For Easy Bolt-On Install
-   Baffled/Chambered Muffler; No Internal Packing
-   Minimal Interior Drone - Aggressive Sound
-   Polished Stainless Steel Slash-Cut Tips
-   Stainless Steel Mandrel Bent Tubing
-   Lifetime Limited Warranty
-   Superflow™ Muffler

This Part Fits:

Year

Make

Model

Submodel

1988-1989

Chevrolet

C3500

Cheyenne

1988-1989

Chevrolet

C3500

Scottsdale

1988-1989

Chevrolet

C3500

Silverado

1988-1989

Chevrolet

K3500

Cheyenne

1988-1989

Chevrolet

K3500

Scottsdale

1988-1989

Chevrolet

K3500

Silverado

1988-1989

GMC

C3500

Sierra

1988-1989

GMC

C3500

Sierra SLE

1988-1989

GMC

C3500

Sierra SLX

1988-1989

GMC

K3500

Sierra

1988-1989

GMC

K3500

Sierra SLE

1988-1989

GMC

K3500

Sierra SLX

## Details

- **Price:** 1870.46 CAD
- **Vendor:** Gibson
- **Type:** Catback

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1870.46 CAD | In stock |

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/gibson-88-89-gmc-c3500-sierra-7-4l-3in-cat-back-single-exhaust-stainless)
> Updated: 2026-06-28