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Maybe The Best Modification I've Ever Made!

"M" Specific discussion
goon
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Maybe The Best Modification I've Ever Made!

Post by goon » Mon Feb 13, 2017 8:25 pm

An appalling looking lash up reminiscent of the type of crap that was sold in Maxpower magazine in the 90s. :(

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Fishy Dave
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Maybe The Best Modification I've Ever Made!

Post by Fishy Dave » Tue Feb 14, 2017 10:37 am

goon wrote:An appalling looking lash up reminiscent of the type of crap that was sold in Maxpower magazine in the 90s. :(
Yes, I have to agree with you :( Thankfully I don't have to look at it, just hear it. :driving: At least it can be removed with no trace at a later date. :)
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goon
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Maybe The Best Modification I've Ever Made!

Post by goon » Tue Feb 14, 2017 7:43 pm

Fishy Dave wrote:
goon wrote:An appalling looking lash up reminiscent of the type of crap that was sold in Maxpower magazine in the 90s. :(
Yes, I have to agree with you :( Thankfully I don't have to look at it, just hear it. :driving: At least it can be removed with no trace at a later date. :)
yes that's right I been looking for nice backbones for a while now but they're not cheap really like the stroking efforts.

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wspohn
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Maybe The Best Modification I've Ever Made!

Post by wspohn » Wed Mar 01, 2017 10:42 pm

Guess it is a cheap way to get more noise, as well as power (but only so long as you have the cut-out open).

My preference is replacing the mufflers which gives you the added power all the time and sounds great all the time. Obviously a more costly way to go. To each his own. At least it is a step up from punching holes in the muffler with a drill like high school boys sometimes do.

I'll even admit to installing a cut-out on a car - in about 1972, and I used it for about a week until I tired of it (the neighbours grew tired of it much, much sooner....) Maybe it is like laying rubber - for some the smoke and noise will amuse them indefinitely. For others it is a brief giggle until they realize that they are paying for the spent rubber.
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Maybe The Best Modification I've Ever Made!

Post by idej_z4 » Wed Mar 01, 2017 10:51 pm

bmwaddict wrote:I love this mod, best of both world's imo. I want a Eisenmann back box but they're bloody expensive. Rally did this to his zed, and I really liked the results, and being able to quieten it down really appeals to me as I live in a quiet village and my car is my daily. Link to the one you bought? I've seen them for circa £155 so that's cheap.
Video soon please!
Have you looked at a longlife stainless steel back box? I've got one on mine and it more or less sounds the same as OPs in this post.

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Post by bmwaddict » Thu Mar 02, 2017 1:40 am

It's being able to quieten it right down and go back into stealth mode which really appeals to me.
Currently zedless :(

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Fishy Dave
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Maybe The Best Modification I've Ever Made!

Post by Fishy Dave » Thu Mar 02, 2017 9:16 am

wspohn wrote: My preference is replacing the mufflers which gives you the added power all the time and sounds great all the time.
Therein lays part of the problem for me, I don't want the noise all of the time. I am borderline being able to get on track at Thruxton with the standard exhaust and on trips to the ring, or visiting my parents in Norfolk the ability to be in relative peace and quiet is pretty valuable to me. Now the initial novelty has worn off I only open the exhaust flap once every other drive, but when I do on an open road it sounds epic to these ears. 30 seconds later I close the exhaust cutout and return to listening the Eventuri and mellow, standard exhaust. The best part of 7 years with a Caterham has definitely helped me value my ear drums on long journeys!
No question that cost came into it as I'd rather spend £1000+ on my racing at present. :)
I will be at the Gary Feakins open day on Sunday (see events) for anyone who wants a listen on the open road. :driving:
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Fishy Dave
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Post by Fishy Dave » Thu Mar 02, 2017 9:17 am

bmwaddict wrote:It's being able to quieten it right down and go back into stealth mode which really appeals to me.
:thumbsup:
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Post by mj2k » Sun Mar 26, 2017 9:27 pm

Love it, my JCW has the Bluetooth exhaust & love it.

Wanted something for the M to make it louder but still remain quiet when required.

Time to find a local place that can do it for me :thumbsup:
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Post by Vanne » Sat Apr 01, 2017 6:38 am

If you like it, awesome!! :thumbsup:

I gotta ask though how this works for when it's time to do your MOT? What's the guy gonna say when he sees that in your exhaust?

Is it legal?
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wspohn
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Maybe The Best Modification I've Ever Made!

Post by wspohn » Sat Apr 01, 2017 5:27 pm

Don't know the rules on your MOT. The similar inspections here in the Great White North (above Trumpville) just require a system that doesn't leak and isn't objectionably loud.

Maybe the ideal would be an after market exhaust that gave full time sporty sound (but not enough to bar you from the track if you want to run there) and a cut out so you can play silly buggers when the urge overcomes you (like going through a tunnel, or at 3 AM on the way home from the pub, perhaps?)
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Maybe The Best Modification I've Ever Made!

Post by j4jack » Thu Jul 20, 2017 7:20 pm

Hi, I'm about to perform this mod myself....Any guidelines as to how to run the wiring? Remember that the Battery on the Z4M Roadster is in the boot/trunk.

Man thanks,

Jack

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Post by tjlazer » Thu Jul 20, 2017 8:29 pm

So I had a listen to me I'd not want to drown out the induction raw with this approach, I'd be happier with an eventuri on its own but I get why you've done it and hell my motorbike a ridiculous exhaust and that always makes me laugh, especially with the off throttle pops and bangs!
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Fishy Dave
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Maybe The Best Modification I've Ever Made!

Post by Fishy Dave » Fri Jul 21, 2017 8:20 am

Hi Jack,

Yes, nice and easy to do, cut the end off the cig lighter, earth to a suitable bolt behind the speaker cover, behind the passenger seat. Fused live in the fusebox using an empty slot, run the extended small positive wire underneath the carpet/sill cover.

:)
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Fishy Dave
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Post by Fishy Dave » Fri Jul 21, 2017 8:22 am

tjlazer wrote: Thu Jul 20, 2017 8:29 pm So I had a listen to me I'd not want to drown out the induction raw with this approach, I'd be happier with an eventuri on its own but I get why you've done it and hell my motorbike a ridiculous exhaust and that always makes me laugh, especially with the off throttle pops and bangs!
Yes, it does overpower the induction noise, but then it's closed most of the time so I get to hear the Eventuri 99% of the time. It's that 1% when I wish for more drama and the button gets pressed. :)
Corvette C6
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Now sold: Z4M Roadster, the best all round car I have owned.

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