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 Alternate muffler with Un-Notched necks

Alternate muffler with Un-Notched necks is 40348

The air springs are adjustable from 5-35 PSI

⚠️ Important: This system is designed to work with Speed Engineering 1999–2006 truck and SUV longtube headers only

Tailored tri-merge design ensures an even flow

offering versatile lighting options

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 Alternate muffler with Un-Notched necksThe 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