Corsa 2005-2007 Chevrolet Corvette C6 6.0L V8 Manual XO Pipe Exhaust Suspension>Strut Bars and has single 4" round

and has single 4" round black chrome on T-304 stainless steel tips on each tail pipe

These aren't ordinary bolts

detailed installation guides with advice for proper installation

The roto-molded housing is made out of black cross-linked polyethylene and mounts directly into the factory headlamp cold air inlet location on the driverside to capture the coolest air available from the factory intake tract

Corsa 2005-2007 Chevrolet Corvette C6 6.0L V8 Manual XO Pipe Exhaust Suspension>Strut Bars and has single 4" roundThe CORSA X Pipe opens the exhaust path improving flow dynamics. Benefits include; increased flow, improved HP and TQ, smoothed trailing throttle, and a more refined exhaust note.