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what a beast
If you own an EJ20 in a WRX
the output can be inverted with the invert function
Compare OEM pulley against photos above to confirm fitment
Possible channels are listed below and may include IAT
GFB Mach 2 Plumb Back to Atmosphere Vent Conversion Kit - Suits T9100/T9101/T9102/T9104/T9105/T9135 Stainless Steel what a beastMACH 2 ATMOSPHERE UPGRADE KIT TO CONVERT FROM RECIRCULATING TO ATMOSPHERE VENTING. Includes trumpet, firmer spring, and 30mm hose plug. To vent the Mach 2 to atmosphere, you need to ensure the piston stays closed at idle, and the recirc hose is plugged. The 5930 Atmosphere Conversion Kit includes a 30mm hose plug to block off the recirc hose, a trumpet to replace the hose outlet on the Mach 2 (not necessary for functionality, but makes the sound
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