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      10-22-2020, 06:33 AM   #41
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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Hi Guys,
Sorry for the delay in updates, we have been busy, and did the exhaust for 50% new.
Time over time the sound was very raspy so we brought in the big guns.
Big resonators in the area where the OPF's were, and 2 individual resonators for the silent mode (it is still valved)
As you see from below picture, the welding is to be finished, I am collecting the car this aft late to do another 2 weeks of testing, but have good hope this will be it.
We tested the "loud"version, just straight piped with the resonators in the mid and it was nice and deep and not raspy

Quick pic from 5 min ago:





Next sound testing this aft wiring up the AK motion display OPF deletes tomorrow to go WOT till redline with the rear mufflers bypassed with the valves open

The V2.0 shown earlier did not throw a CEL with the valves closed by the way, it seemed it was somewhat restrictive

End tips choice of many, 90mm, 100mm, stainless, CF matte, CF glossy, these are the Matte 100mm, which I like a lot.

To be continued

Last edited by Dutch Devotion; 10-22-2020 at 06:38 AM..
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