New Titanium Exhaust

This is the problem really.

You could mod a standard exhaust with a flap and get the same effect for about £250.

So many mods are just bad value and questionable in my view. Group buy one, fit it, and you have no choice but to like it... could be an expensive mistake!
 
There was a guy who posted on here who was going to use my Z4M for custom, switchable exhaust development.

Only visited him once, and not heard anything since, so don't know if he's decided it's not worth it, or if he didn't think I was that interested (which I wasn't as I'm not thinking of an aftermarket exhaust).

I know their system wasn't titanium, but for the Z4M I'm sure he said they were working out at about £500-£700 for a cat-back system.
 
Sorry but for me this is the latest in a long, long line of Z4M aftermarket exhausts that make a nice stock sound much less pleasant.
 
original guvnor said:
Sorry but for me this is the latest in a long, long line of Z4M aftermarket exhausts that make a nice stock sound much less pleasant.
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Amen...I dread the day my system falls off! As i've be faced with a really touch decision! OEM system at £mega or Aftermarket which all sound guff...

Only exception which i think sounds 'ok' is the Remus...
 
Aliv6 said:
original guvnor said:
Sorry but for me this is the latest in a long, long line of Z4M aftermarket exhausts that make a nice stock sound much less pleasant.
Click to expand...

Amen...I dread the day my system falls off! As i've be faced with a really touch decision! OEM system at £mega or Aftermarket which all sound guff...

Only exception which i think sounds 'ok' is the Remus...
Click to expand...

100% agree Ali.
 
i think you cannot beat the stock exhaust.

Fitted an Eisenmann race exhaust to my M3 and was pleased with it. When i sold the car and put it back to OEM i thought to myself how much better the stock car sounded!

Save your pennies
 
mmm-five said:
There was a guy who posted on here who was going to use my Z4M for custom, switchable exhaust development.

Only visited him once, and not heard anything since, so don't know if he's decided it's not worth it, or if he didn't think I was that interested (which I wasn't as I'm not thinking of an aftermarket exhaust).

I know their system wasn't titanium, but for the Z4M I'm sure he said they were working out at about £500-£700 for a cat-back system.
Click to expand...

Issue is, BMW made thousands of exhausts with high end R&D, and massive economies of scale, so their expensive exhaust has probably had a factor or two extra investment than an aftermarket one for less money!

Sounds horrible, but most aftermarket exhaust people show very little in the way of any R&D or development, fixed gain before/after recordings of their cars or anything.

If they can't prove to you how nice their exhaust is, you'd be worried. And experimenting with a £800 exhaust that might just turn out to be s**t, is expensive experimenting!

At least you can test drive a car before you buy... do many exhaust places offer a money back guarantee if not completely satisfied?

Dave
 
I think it's telling that Akrapovic, who seem to be one of the leading companies in this field, don't do a system for the E46M3 or Z4M. Yet they make products for all the current M's. Its nothing to do with those models being no longer produced either - they do a 1M which is no longer made and was a small volume car (just like our Z4M's). There are also tens of thousands of E46M3's out there which shares the same engine as ours so potentially lots of sales to make the development more worthwhile than doing the 1M.
 
I don't think it's telling at all original guvnor.

Eisenmann who are every bit as good as Akrapovic, albeit not as "exotic", have exhausts for pretty much every M model out there, among many other cars, and make no less than 2 different ones for Z4M's.

Our stock exhausts are not the freaking holy grail... Yes someone might simply enjoy the stock sound, i fully accept that, but just because it came from the factory doesn't mean it cannot be improved upon. The stock system is a compromise. A compromise between good performance, pleasing tone and drone. Personally i don't mind a bit of drone (or a lot considering i have the RPI's! :rofl: ) and would gladly sacrifice some refinement for more growl!

To each their own.
 
ga41 said:
I don't think it's telling at all original guvnor.

Eisenmann who are every bit as good as Akrapovic, albeit not as "exotic", have exhausts for pretty much every M model out there, among many other cars, and make no less than 2 different ones for Z4M's.

Our stock exhausts are not the freaking holy grail... Yes someone might simply enjoy the stock sound, i fully accept that, but just because it came from the factory doesn't mean it cannot be improved upon. The stock system is a compromise. A compromise between good performance, pleasing tone and drone. Personally i don't mind a bit of drone (or a lot considering i have the RPI's! :rofl: ) and would gladly sacrifice some refinement for more growl!

To each their own.
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The stock system is a compromise, but so is any other exhaust.

Before you spend £2,500 it'd be nice for the company selling it to tell you what the original one does/doesn't do and why, and then tell you why theirs is different.

Not just marketing speak, but technically. Ie, what a race team would want to hear and be assured or guaranteed of.

Again, not saying they are all bad, some are probably pretty good, but lets not pretend most exhaust manufacturers are not just in it to make a living first, providing a nice product 2nd. The BMW engineers won't have that compromised motivation, nor the constraints of a non-OEM.

All compromised, but BMW have the skills and money to make it a bloody good compromise :D

Dave
 
Of course manufacturers have to cut corners. If they didn't they'd end up with something like a Veyron, or a Zonda! Many things have to be taken into account when designing a car of a mainstream manufacturer and one of the most important is cost i would think.

I bet they could have designed an exhaust that produces even more power, with an even better sound, with electronic flaps for extra growliness when you feel like it and helmoltz chambers to reduce drone to nothing. They could. But try telling the bean counters to grant a few million quid for R&D for a pair of mufflers!
 
There is the weight saving I guess but in a 1425kg car (or thereabouts) it ain't gonna add up to diddly squat in terms of performance every day unless you are a real track demon. The stock system is also bloody durable too.

My big beef with the aftermarket exhausts for the M is that IMO they all sound really, REALLY shite. I think they completely ruin the stock sound and replace a nice metallic rasp with something which wouldn't be out of place in a KFC car park at midnight.

It is just my view though. Wouldn't do if we all liked the same thing. The nicest sound I've heard from the aftermarket bunch is the Schnitzer version but I don't like the tailpipe design. I think this is actually manufactured by Remus exhaust is it not ?
 
original guvnor said:
Aliv6 said:
Aftermarket all sound guff...

Only exception which i think sounds 'ok' is the Remus...
Click to expand...

100% agree Ali.
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Well thank goodness for that!...

...I'll be picking up mine with its newly fitted Remus back boxes at the weekend and I can't wait :trampoline: :trampoline:
 
BMWZ4MC said:
Well thank goodness for that!...

...I'll be picking up mine with its newly fitted Remus back boxes at the weekend and I can't wait :trampoline: :trampoline:
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Let us know what you think of them. I fitted mine around 5-6 months ago. I think initially the change was more subtle than I would have wanted, but I think they are a definite improvement and think they might actually be spot on: no real drone, louder but not silly loud, and on full chat they sound like what you'd expect of a 338bhp sports car :) The sound when it starts up when cold is very nice too 8)
 
Ah yes, an important difference. Of course I meant that mine is 343bhp (measured with my precisely calibrated arse dyno) as it's that little bit more special than most :P
 
original guvnor said:
There is the weight saving I guess but in a 1425kg car (or thereabouts) it ain't gonna add up to diddly squat in terms of performance every day unless you are a real track demon. The stock system is also bloody durable too.

My big beef with the aftermarket exhausts for the M is that IMO they all sound really, REALLY shite. I think they completely ruin the stock sound and replace a nice metallic rasp with something which wouldn't be out of place in a KFC car park at midnight.

It is just my view though. Wouldn't do if we all liked the same thing. The nicest sound I've heard from the aftermarket bunch is the Schnitzer version but I don't like the tailpipe design. I think this is actually manufactured by Remus exhaust is it not ?
Click to expand...

There's considerable weight savings actually. And when combined with other get-the-weight-off mods (seats, wheels etc) it makes a difference to more than just 'track demons'. Also, I don't know what places you frequent that you get to hear all the different aftermarket exhausts IN PERSON, but of the ones I've heard, some sound MUCH better than stock (note: deeper - not raspy). If anything, our stock sound is quite soft (for those aged 70 and under that is). It is a sports car after all.

P.s. You can select different tips on the ACS mufflers can be chosen btw
 
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