Quote:
Originally Posted by DriverDaily
I would try to hear the Remus in person.
They are using helmholtz resonators to target specific frequencies and cancel them out. I don't know if they are targeting high frequency rasp, low frequency drone, or both.
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That is the point. If OP wants to keep the OPF, than Remus Race is the winner.
With my friend we custom made an axle-back exhaust with two Helmholtz resonator (the same design as Remus Race, but for less money :-)).
We kept OPFs and factory resonators in place as well and integrated the factory exhaust valves as well.
Sounds very-very good and no CELL.
A little bit drone during the cold start up (but only within the first 3 or 4 seconds...)
Akra is an overpriced exhaust axle-back system for M2C with OPF. Not worth it and does not sound significantly better than factory exhaust for that money. On my recent F13 M6 i had Akra, that was a good system with good sound...
Laszlo