99-01 GM P/U Ext Cab SB Swept Side Exhaust Kit

The 99-01 GM P/U Ext Cab SB Swept Side Exhaust Kit from Gibson Exhaust is a cat-back system engineered for 1999–2001 General Motors full-size pickup trucks with extended cabs and small-block engines. This swept-side configuration is designed for builders who want a clean, factory-integrated look without full undercarriage rework. Whether you're restoring a work truck or building a weekend hauler, this kit balances aesthetic appeal with functional flow, replacing the restrictive OEM exhaust and tailpipe with a modern stainless steel design that flows as cleanly as the truck's original lines.

Built from aluminized and stainless steel construction, the 99-01 GM P/U Ext Cab SB Swept Side Exhaust Kit features a 3-inch main diameter tubing with 3.5-inch polished tips that provide both durability and visual presence. The swept-side design means the exhaust exits along the truck's rocker panel rather than at a traditional rear angle, reducing turbulence and offering a sleeker profile that complements modern suspension and wheel upgrades. Stainless internals resist corrosion and thermal fatigue, while the aluminized outer jacket protects against road salt and moisture—critical for trucks that see winter service or coastal conditions.

This cat-back kit is ideal for extended-cab 1999–2001 GM full-size pickups running small-block Chevy engines, and installation is straightforward for anyone with basic suspension and exhaust work experience. The swept-side exit clears most aftermarket bumpers and skid plates, making it compatible with off-road and performance builds. At 50.2 lbs, the complete assembly is manageable for a two-person installation, and the standardized 3-inch flange design integrates with most factory and aftermarket catalytic converters. For mechanical enthusiasts building reliable, long-term daily drivers or weekend rigs, this Gibson system delivers measurable flow gains, corrosion resistance, and the visual upgrade that transforms an overlooked truck into a properly finished machine.