[ole85]

Normally always choose akra but have been quoted 15kAUD which I find Ludicrous
What other options do we have

[nathanm4]

Originally Posted by ole85

Normally always choose akra but have been quoted 15kAUD which I find Ludicrous
What other options do we have

Akra isn't special to me anymore. I would go with MPE or FI Exhaust. Only two decent ones at the moment IMO.

[LukeM15]

Fabspeed has a nice one available
R44 system is also nice.

[ole85]

Thanks, what do you think of Remus

[LukeM15]

Originally Posted by ole85

Thanks, what do you think of Remus

Nice also. Compare sounds, from what I heard on video. I like Fabspeed the best

[beachBmmr]

To me all these axle back systems are pointless, when valves open and you bypass it all anyway. Best sound I've heard is secondary cat and resonators delete / psi or supersprint mid pipe….Ymmv Im going PSI

[kbanga]

Remus Race Catback

[JTO24]

Valvetronic mid-pipe w/ VSC valve controller to fully open the valves... best sounding solution, to me, and a helluva lot cheaper than these other full systems. Next I would consider Remus. IND had a teaser of the Eisenmann on their IG and it sounded pretty good, too.

[dimab0]

Originally Posted by nathanm4

Akra isn't special to me anymore. I would go with MPE or FI Exhaust. Only two decent ones at the moment IMO.

Have you seen MPE anywhere? It's not available to the best of my knowledge, and no eta.

[frank70]

OEM BMW. It was designed with the car and it is the most optimal all things considered i am sure. And it is for free when you buy a M3 or M4 !

[barryc365]

Originally Posted by JTO24

Valvetronic mid-pipe w/ VSC valve controller to fully open the valves... best sounding solution, to me, and a helluva lot cheaper than these other full systems. Next I would consider Remus. IND had a teaser of the Eisenmann on their IG and it sounded pretty good, too.

Exactly what I've gone for.

The back box on these cars is not the issue. I don't see any point in spending money on the rear section

The mid section is where the value is at in terms on return on investment

[TexasEd]

Forget about an aftermarket axle back exhaust and save yourself thousands of dollars. Much simpler and much cheaper; just changeout the midpipe by deleting the resonators. You will achieve (1)weight savings, (2) better sound, (3) more horsepower and torque, and (4) cost savings.

[Medal]

Originally Posted by barryc365

Exactly what I've gone for.

The back box on these cars is not the issue. I don't see any point in spending money on the rear section

The mid section is where the value is at in terms on return on investment

I'm struggling to tell the difference in these YT videos the sound difference between the PSI and Valvetronic options. I agree with most here that spending $~15k on an exhaust is kinda crazy, unless money is just no object...that and I like the look of the stock back box/tips and honestly think both the PSI and Valvetronic solutions sound amazing.

As these are both similarly priced, is there a reason at least two of you are going with the the Valvetronic over the PSI? Again, they both sound good, but there must be a reason you are going former vs. latter.

Also, for what it's worth, I much prefer a deeper tone than not. I can't tell which one is deeper, but also worth mentioning I hope to avoid highway drone-noise.

Appreciate any insight on what made any/all of you make a decision here. Thanks!

[JTO24]

Originally Posted by Medal

I'm struggling to tell the difference in these YT videos the sound difference between the PSI and Valvetronic options. I agree with most here that spending $~15k on an exhaust is kinda crazy, unless money is just no object...that and I like the look of the stock back box/tips and honestly think both the PSI and Valvetronic solutions sound amazing.

As these are both similarly priced, is there a reason at least two of you are going with the the Valvetronic over the PSI? Again, they both sound good, but there must be a reason you are going former vs. latter.

Also, for what it's worth, I much prefer a deeper tone than not. I can't tell which one is deeper, but also worth mentioning I hope to avoid highway drone-noise.

Appreciate any insight on what made any/all of you make a decision here. Thanks!

For me, the VT mid pipe changes the tone for the better.. a bit more melodic, akin to the equal length mid-pipes on the F8x cars. From what I've heard of the PSI mid-pipe, the tone improves some, but still sounds a bit flat/monotone as you go through the rev range, for me and my ears at least. The biggest complaint I've heard about the VT mid pipe is lead time so if you want something right now, that might not be in play... but that may have changed recently, IDK.

[M0J0]

I want to know why the Valvetronic G80 midpipe costs 1890 and the E92 costs 899. It seems massively overpriced.

[LukeM15]

Originally Posted by M0J0

I want to know why the Valvetronic G80 midpipe costs 1890 and the E92 costs 899. It seems massively overpriced.

Bc they know it’s not that many options. Simple science.

[barryc365]

Originally Posted by Medal

I'm struggling to tell the difference in these YT videos the sound difference between the PSI and Valvetronic options. I agree with most here that spending $~15k on an exhaust is kinda crazy, unless money is just no object...that and I like the look of the stock back box/tips and honestly think both the PSI and Valvetronic solutions sound amazing.

As these are both similarly priced, is there a reason at least two of you are going with the the Valvetronic over the PSI? Again, they both sound good, but there must be a reason you are going former vs. latter.

Also, for what it's worth, I much prefer a deeper tone than not. I can't tell which one is deeper, but also worth mentioning I hope to avoid highway drone-noise.

Appreciate any insight on what made any/all of you make a decision here. Thanks!

It was really a coin toss and considered Supersprint too but from talking to the guy who owns this car in the video below and others it sounds like Valvetronic is the deeper tone with no raspyness or drone

The guys from Valvetronic seem to think that their single midpipe is going to be less raspy than an H or X pipe that you get on the other designs so it is a pretty significant design difference having the single pipe. I doubt you'd go too far wrong with either.

If you're in a rush to acquire one that might be a factor too as they're are backlogs of orders.

[barryc365]

Originally Posted by LukeM15

Bc they know it's not that many options. Simple science.

Yea, That is a factor but when you consider the pandemic materials and labor shortages that might explain it somewhat too, not to mention shipping large products like this has got very expensive

The e92 pipes could be taking up room on the shelf at this stage and were manufactured a while back during a period of cheaper materials and plentiful labor supply? Maybe!

Brand new car parts are always going to have a premium attached to help pay for the R&D time

[Medal]

Really appreciate all this insight, all. I'm in absolutely no rush. I'm about to spend an arm and a leg (for me anyways) getting the car PPF'd (track package-like coverage), opti-coat pro over the entire car, and interior protection etc...so for now, I'm taking the time to investigate my options here, as I do know I want a mid-pipe solution, not a cat-back solution. I know from reading many posts here that Valvtronic is highly recommended...I jsut found this video of the PSI option and that's what first made me interested in them:

All this to say Valvtronic is the way I'm leaning based solely on recommendations and the similarity in sound between the two to my ears, it just seems safe to go with their solution. but again, I'm not rushing to order today.

Lastly, either solution offers the ability to do a header-solution down the road, correct? I'm almost certain that's the case, but just confirming.

Thanks!

[barryc365]

Yes you can change the down pipes with either solution

[Medal]

Originally Posted by barryc365

Yes you can change the down pipes with either solution

Thought so, thanks for confirming

[m20e3087]

Forgot full exhaust, save your money like some have said. Mid-pipe and DP is the way to go with G8X IMO. Other than that Remus sounded the best to me.