Quote:
Originally Posted by mike@x-ph.com
I used front mount intakes with this bend on my M4 and switched to regular intakes.
I did not feel any difference in how fast the car responds, and my data logs look the same.
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I dont think you would get a whole lot of true performance increase unless the tubing was larger than oem (you need to increase the flow for the benefit). To really benefit, you will then need to tune for the upgrade*.
*tuner who did my B9 S5 recently tuned an M3...27 hp increase from oem with BMC filters to Eventuri, which has increased tubing size (when tuned for the greater airflow).