Vibrant 4-Bolt Oval Exhaust Gaskets Select::4.00" Nominal (13177G) the crossover siphon port can

the crossover siphon port can be easily adapted to common hoses as it uses 6AN ORB (9/16-18 O-ring) female threads

Features a recirculated wastegate dump for stock-like sound under wide open throttle

and dragster wrap styles

(2) Universal Carbon Fiber Ducts

Vibrant 4-Bolt Oval Exhaust Gaskets Select::4.00" Nominal (13177G) the crossover siphon port canVibrant Performance 4 bolt oval exhaust gaskets are available in nominal sizes to match the Vibrant oval tubing and flanges. Made of 1. 5mm thick graphite. Sold individually as needed. Price is for one gasket. Specs: Graphite 0. 06" (1. 5mm) Thick Includes: (1) Gasket Vibrant 4 Bolt Oval Exhaust Gaskets Nominal Size: Width: Height: Thickness: Part Number: 3. 00" 3. 90" 3. 25" 0. 06" 13175G 3. 50" 3. 90" 3. 42" 0. 06" 13176G 4. 00" 4. 82" 4. 46" 0. 06"