This center cap only fits: JR38 (18 - 20")

All necessary hoses

Liquid Actuator Cooling Provision

and the valve is a bolt-on direct replacement for the factory valve

user manual

BOV Bubba Sonic VTA Blue Anti-theft Lug Nuts This center cap only fits:Sometimes bigger is just better. Designed for large capacity supercharged and turbocharged engines, including turbo diesel engines, the Bubba Sonic is a large and scary full time vent to atmosphere Blow Off Valve. Bubba Sonic features: Precision machining and assembly the piston and valve body are measured to mere fractions of a millimetre, and perfectly matched to fit each other exactly. Because of this precision, an O ring is not needed to create an