I've been wondering the exact same thing OP, it just doesn't seem worth it at all. Afe also claims good numbers on there intake for the f30, which i have. I didn't notice anything much but a tiny bit of extra torque under the curve and a change in sound and thats exactly what i was expecting. Afe is very optimistic with there numbers to say the least with products like these... except there scorcher module. There is a huge noticeble increase there.
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