Gibson GP100S Performance Header Short Tube Stainless Steel

The Gibson GP100S is a short tube, direct-fit performance header constructed from 16-gauge 409L stainless steel mandrel-bent tubing. Dyno-tuned and engineered to deliver increased horsepower and torque in the low and mid-range RPM band, these headers replace the factory exhaust manifolds and connect directly to the stock crossover pipe — no welding, cutting, or fabrication required.

Mandrel-bent primary tubing maintains consistent diameter throughout every bend for maximum exhaust flow, improving the engine's ability to breathe and reducing operating temperatures. The bolt-on design uses OEM-style connections and is well suited for both stock-height, lowered, and raised vehicles used on the street or off-road.

Key Features:

• Short tube header style — direct fit, bolt-on installation
• 16-gauge 409L stainless steel mandrel-bent primary tubing, 1.50-in. diameter
• 3/8" heavy-duty laser-cut port flanges — engineered to prevent warping and leaking
• Attaches to the OEM crossover pipe — no air injection fittings required
• Uses OEM-style connections — no welding required
• Dyno-tuned for increased horsepower and torque at low and mid-range RPM
• Promotes cooler engine operating temperatures through improved exhaust scavenging
• 50-state street legal — meets EPA and CARB emissions requirements (CARB E.O.# D-411-13)
• Will not affect the factory powertrain warranty
• Premium gaskets and all installation hardware included
• Backed by a Lifetime Limited Warranty

Gibson GP100S headers are sold as a pair and are designed as a direct factory manifold replacement. The stainless steel finish provides long-term corrosion resistance and is warranted against internal rust-through.