Quote:
Originally Posted by Arjgt3
Let me start this of by saying that I love modding the exhaust on every single car I've owned. It's a thing of joy for me...until now.
Bought the Akrapovic Evolution System for the F90 and surprisingly didn't have to wait a Long time for the first set to be delivered in Asia. I bought it with the Akrapovic Carbon diffuser as well to complete the look.
For the first time ever, really, I am forced to admit that I've bought an exhaust for the public who see and hear my car from the outside and not me.
Let me explain, the F90 is incredibly well insulated. From outside the car, the exhaust sounds absolutely heavenly even with the valve closed. With it open, it sounds like The God of Thunder has taken up residence in the rear end of your M5. And it is glorious!
BUT, and it's a fairly big BUT, from the inside, where you and I take up residence, it's pretty much the same old situation....it barely sounds any different to the 1MA M Sports exhaust option that all of us could have spec'd on our cars from new. And to me, that's very disappointing on what is a very expensive exhaust system.
Just to put it into context, I had an F10 M5 as well to which I fit the Akrapovic Evo system and the result was for more pronounced for some reason. I could actually hear the difference. On this F90 System, with the valves open, there's not much of an improvement in aural quality within the cabin. You can hear the tiny micro explosions when you lift off the throttle mid gear with the valves open a little better, but so far, that's it.
As for the supposed increase in horsepower and torque, well you were never really going to be able to feel the difference on a car that comes with 600 of those ponies stock.....I certainly haven't felt anything significantly different worth reporting so far.
For the sake of fairness, I will admit I've only driven 500km with the Akrapovic on the car so I am willing to accept the fact that it needs some miles on it to open up. My Guess is however, that it's not going to make a whole lot of difference.
I'm slightly disappointed with the end result but then again, I knew how well insulated the cabin was going into this. So the only way to really enjoy this very expensive exhaust is to drive with the aircon off and windows down, which given Singapore's ambient hot and humid climate, isn't ideal at all.
What I will say, positivity, is that the exhaust is a work of art, the Titanium finishing is really next level stuff & the rear diffuser is utterly gorgeous as it's sits very differently on the rear bumper than the stock piece. This bit of it is worth the $$$$
In conclusion, I would say that if you intend to mod your car power wise down the line, do it. Can't really go wrong.
However, if you're buying the Akrapovic for an improvement in sound quality, only your neighbours will really appreciate it...or maybe not if they're the conservative sort. I would stick with the M Sports 1MA exhaust option as it's much cheaper with almost the exact same result, or go for a cheaper exhaust system from another company.
This is not really the fault of Akrapovic as it's just down to the fact that the cabin is so well insulated. Oh well, I've bought it now, so I'm going to keep it. For those of you hovering on the fence, give it a good think through as it's alot of money 💵 to spend for relatively little gain.
Once again, this is purely my own experience and there may well be others who have had a very positive experience with this system. I'm going to drive more to run mine in and hope that the situation, aurally, improves. Cheers 🥂
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Thank you for posting for a myriad of reasons but basically:
1. A big sigh of relief for me to know that with X-Pipe on and Dinan Axle Back and I hear very nice noice when I'm in the back and someone else is revving it, last time I had to ask the shop owner EuroMpire (Who has an M4 with an after market exhaust) to drive it in front of me, and I loved, yet he comes back and w escape places and I am underwhelmed again.
2. I heard that with an X-Pipe and Dinan you get as close as possible to to Akrapovic, and heard it from someone who has M5C with Akra and heard Dinan too
Thanks for posting, as you actually put this issue to rest for me,
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