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      01-21-2020, 01:40 PM   #46
ste0803
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Drives: Purple F90 M5 - Stage 1
Join Date: Dec 2017
Location: Newcastle

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Quote:
Originally Posted by Simon H View Post
Thanks for the reply Ste,
I actually think you are right about the mapping safeguard etc, because, as i say, when freerevving when not under load, the pops and bangs are just spot on. If i could reproduce this sound at will when underload, i think the exhaust aftermarket for the M5, would be redundant. Ive also noticed when freerevving, it will only pop and bang for a short span of time, say 6 or 7 bootfulls, then wont do it anymore, thus adding to the theory of a safeguard ?, all interesting and clever stuff.
But the bottom line atm is, is the sound is being robbed by the damned OPFs.
Yes the OPF’s are very limiting.

It’s either a new backbox, backbox mod or a removal of any of the other parts and a tune to remove the CEL.
Appreciate 1
Simon H876.00