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Manufacturer Model Type Details Body Year Lowering FA Lowering RA Weight FA Weight RA Notes Porsche Boxster 987 2
**Testing performed with California ACN 91 octane pump gas
BMW 6 Series (F06 / F12 / F13) 2012-2013
986/987/981
GFB Spares- Atmosphere Conversion Kit suits T9103 & T9133 for Subaru WRX STi 30x23x4 Manufacturer Model Type Details BodyMACH 2 ATMOSPHERE UPGRADE KIT TO CONVERT FROM RECIRCULATING TO ATMOSPHERE VENTING. Includes trumpet, firmer spring, and 33mm 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 5933 Atmosphere Conversion Kit includes a 33mm 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
