Gibson Exhaust GP223S Performance Header - Stainless Steel

The Gibson GP223S Performance Header is a stainless steel, direct-replacement exhaust manifold engineered to unlock more usable power throughout the RPM range. Dyno-tuned by Gibson's engineering team, this header is optimized to deliver measurable gains in horsepower and torque at low and mid-range RPM — exactly where you need it most for street driving and highway cruising.

Designed as a bolt-in replacement for factory exhaust manifolds, the GP223S works with the stock crossover pipe, making installation straightforward with no welding required and no modifications to existing components. OEM-style connections ensure a clean, leak-free fit right out of the box.

Key Features:

• Dyno-tuned design for real-world horsepower and torque gains at low and mid-range RPM
• Stainless steel construction for superior corrosion resistance and longevity
• 3/8" heavy-duty laser-cut port flanges — engineered to resist warping and eliminate leaks
• Direct OEM replacement — uses the stock crossover pipe with no welding required
• Improves engine breathing and promotes cooler operating temperatures
• Compatible with lowered and raised vehicles, street and off-road applications
• 50-State street legal — meets EPA and CARB requirements
• Will not affect the factory warranty
• OEM-style connections for straightforward installation
• Premium gaskets and hardware included
• Backed by a Lifetime Limited Warranty

Whether you're building a performance street machine or a capable off-road rig, the Gibson GP223S is a proven upgrade that delivers real results without compromising drivability or emissions compliance.