Turbosmart’s new Smart Port trumpet allows the use of a softer spring in the body of the BOV to aid in valve response to the plumb back port

the Mercedes’ standard bypass valves are plastic units that bleed boost and struggle to cope with the pressure

This center cap only fits: JR12 (16"-17")

it will struggle to keep up

It works by detecting a negative voltage change in throttle position

Straight 1.50"x 610mm BLACK" Mazda Turbosmart’s new Smart Port trumpetHigh performance multi layered Silicone hose. Constant temp resistant from 50 to 170 degrees Celsius ( 60 to 340 degrees Fahrenheit) and pressure rated to 220PSI with a 5mm wall thickness. Engineered to Win by Turbosmart.