Quote:
Originally Posted by JTO24
I went BMC filters and removed charcoal filters... could be placebo but throttle response seems a touch sharper and there's a small audible improvement too.
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I just installed my BMC's yesterday. Was kinda disappointed as I didn't really notice any difference in any regard. Could be because my exhaust is pretty loud (full Valvetronic Ti), but the butt dyno didn't pick up any gains either. This is in contrast to both my F80 M3 CS and F90 M5, both of which I felt and heard a difference when dropping in the BMC's and removing the charcoals.