Speed Engineering 1-7/8" Longtube Headers for Pontiac G8, Chevrolet SS Sedan & Caprice PPV — 6.0L / 6.2L LS Engines | 25-1073 1968-chevrolet-c10-pickup-esi8984555 Race-Developed High-Flow Piston Design

Race-Developed High-Flow Piston Design

Tailored tri-merge design ensures an even flow

Will these gaskets work with my factory exhaust manifolds

The air springs are adjustable from 5-35 PSI

Speed Engineering 1-7/8" Longtube Headers for Pontiac G8, Chevrolet SS Sedan & Caprice PPV — 6.0L / 6.2L LS Engines | 25-1073 1968-chevrolet-c10-pickup-esi8984555 Race-Developed High-Flow Piston DesignThe factory exhaust manifolds on your LS powered Pontiac G8, Chevrolet SS Sedan, or Caprice PPV are a known restriction. Speed Engineering's 1 7 8" longtube headers are a direct fit, dyno proven replacement that unlocks real exhaust flow, improves throttle response, and puts measurable power back in your hands over 25 rear wheel horsepower gained over stock. Every set is mandrel bent, TIG welded, and built from 304 natural stainless steel with CNC