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2015-2020 Subaru STI
Working together with Nostrum High Performance
Our 1JZ Non-VVTi manifold is a split pulse T4 design with a single 44/45/46mm wastegate mount
this thing isn’t going anywhere
GFB Mach 2 Plumb Back to Atmosphere Vent Conversion Kit - Suits T9120 Exhaust Hardware 2015-2020 Subaru STIMACH 2 ATMOSPHERE UPGRADE KIT TO CONVERT FROM RECIRCULATING TO ATMOSPHERE VENTING. Includes trumpet, firmer spring, and 20mm 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 5920 Atmosphere Conversion Kit includes a 20mm 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
US$ 35.91
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US$ 50.00
US$ 35.91
US$ 67.73
US$ 35.91