A guy in Perth has fitted one in his 335i with no issue and I'm going to get mine fitted next week.
Shipping was $89
$390 to install.
BMS - JB4 N54 G4 | Cyba - Intake Air Scoop | JBSPEED - Piano Black Kidney Grill | VRSF 3" Ceramic Coated Catless Downpipe | PYSPEED Key Fob Holder | BMW OEM M3 DCT Paddle Shift | First Choice 20W H8 Cree Angel Eyes | Avant Garde 19" M510 | Alpina B3 TCU Flash |
12.836 @ 109.75mph (Cobb - Accessport & VRSF DP)