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ALY-174BK & ALY-175BK
• 2 Boost Settings: easily selected via the “turn-and-push” button
Ideal for dedicated race cars
Nissan GT-R R35
MACH 2 ATMOSPHERE CONVERSION KIT (SUITS T9120) sR20 kit ALY-174BK & ALY-175BKMACH 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
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