GFB Mach 2 Atmosphere Conversion Kit
Mach 2 Atmosphere Upgrade Kit to Convert T9103 & T9133 from Recirculating to Atmosphere Venting BOV.
Consisting of trumpet, spring and plug.
The spring used in these kits is harder, as the valve needs to remain closed at idle when venting to atmosphere, this prevents stalling and backfiring.
Suits: Mitsubishi EVO and Subaru WRX.
Please check the GFB website for actual vehicle listings for T9103 & T9133