Mach 2 DV to Blowoff Conversion Kit (Subaru, Nissan, Mazda)

Mach 2 Atmosphere Upgrade Kit to convert the following models from recirculating to atmosphere venting blowoff valve:

T9100 = 223854
T9101 = 223856
T9102 = 223857
T9104 = 223861
T9105 = 223863
T9135 = 223866

Consisting of trumpet, spring and plug.

Replace the outlet / recirculating hose tube connector on the blowoff valve for the trumpet. Exchange the standard spring in the valve for the new spring designed for atmospheric venting.
Seal the recirculating hose of your car with the plug.