Quote:
Originally Posted by 2Banger
AFE Stage 2 Cold Air Intake System PRO 5R Oil 51-12212, 2012-2016 BMW 320i / 328i / 428i F30 / F32
This Stage-2 cold air intake system resulted in 11 max horsepower, 15 lbs. x ft. torque and out-flowed the factory intake by 38% on the 2012-2014 BMW 328i (F30) N20 Turbo.
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Injen Short Ram Intake (Polished) SP1122P, 2013-2016 BMW 328i / 428i (N20 /N26) F30 / F32 *Free Shipping*
In testing performed by Injen at their R & D facility the 328i Short Ram system made 9.6 hp and 21.54 ft. lbs of torque!
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Those figures are within the range of normal deviance between tests. As pointed out earlier in the thread, the stock intake on the N20 with a good filter is more than adequate.
Aesthetically, they are an improvement.