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      09-20-2020, 07:51 AM   #202
Dutch Devotion
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Drives: F80M3 - M2 comp ETA 14.10.2019
Join Date: Apr 2018
Location: Autobahn Hooning

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Quote:
Originally Posted by MyM2See View Post
I'm hearing that running a non-res EL exhaust with DPs will sound terrible and is not recommended.

Anyone able to get any vids? Hoff?
Sorry mate no vids but some experience to share;


It is al personal, but my project with an EL (Milltek style with the big U) had the drivers settings to go resonated or non-resonated via the standard valves/ push of the AK motion button.

Valves open = non resonated = shit, really, at 4000ish rpm it sounds like a sliding trumpet which at 1 stage also has this unbelievably loud trumpetting sound. Pretty sure there are peepz who like it, but I don't
Valves closed = resonated = much less shit but not perfect yet.

Additional sound engineering is ongoing, we added some small resonators all the way back in the exhaust (to be as efficient as possible), it is almost unbelievable what a difference that makes, but still not perfect. Somehoz the engine creates pules that are very loud and resonating at 4000rpm, but even cold start at 2000rpm you feel the pressure pounding your chests standing behind the exhausts

We like it perfect so we keep tweaking, will update soon.

Cheers
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