Z4///M back boxes

[Machine monkey]

I have a set of these and brand new clamp kit for sale. I can modify them one of 2 ways
Bypass pipes
Or the internal resonator mod.
I will supply them with a set of my exhaust tips plus original tips polished.
I have these advertised else where for more.
But a forum only price of £250 takes these away. Collection preferred from OX28.
Or buyer arranges collection I am happy to package them up.
I could also fit them for a small fee.

Thanks monkey

These are now sold but I am happy to discus any exhaust work.

 

[Darren Slone]

That’s a great deal Mat, I have the bypass mod done on the MR and I really like the sound, shouldn’t think these will hang around at that money

 

[Machine monkey]

Thanks Daren I don’t think you could get better for less anywhere else.

 

[Joneeboy]

Have you any pics, OP?

 

[Machine monkey]

Have you any pics, OP?

If the tips or the internal mod?
If you use the search function look up machine “monkey exhaust tips” You will find loads.
And do the same for “bypass pipes” and you should be able to find some for the internal mod too.
I will check my laptop when I am gone later. I haven’t done these for some time. So don’t have any on my phone.?

 

[Attilio]

Hello Machine Monkey!

I just sent you a PM on the topic of OEM back boxes and ask if you could come to the rescue...let me know.

A

 

[Machine monkey]

Replied and yes I can

 

[Phoenixboy]

are you doing anything for the 89 matt?

 

[R60BBA]

That’s a great deal Mat, I have the bypass mod done on the MR and I really like the sound, shouldn’t think these will hang around at that money

Got a vid of the bypass mod?

 

[Truth]

Hello Machine Monkey!

I just sent you a PM on the topic of OEM back boxes and ask if you could come to the rescue...let me know.

A

Didn’t you buy a set and get them shipped to be modified by someone?

 

[Machine monkey]

are you doing anything for the 89 matt?

Send me spare backboxes I can give it a go.

 

[Machine monkey]

That’s a great deal Mat, I have the bypass mod done on the MR and I really like the sound, shouldn’t think these will hang around at that money

Got a vid of the bypass mod?

Sure there must be in hear use the old search function. I have done them before but sure I don’t have a vid myself sorry.

 

[Attilio]

Hello Machine Monkey!

I just sent you a PM on the topic of OEM back boxes and ask if you could come to the rescue...let me know.

A

Didn’t you buy a set and get them shipped to be modified by someone?

I did... and haven't heard back much since they were delivered to the workshop...

 

[Darren Slone]

That’s a great deal Mat, I have the bypass mod done on the MR and I really like the sound, shouldn’t think these will hang around at that money

Got a vid of the bypass mod?

No I haven’t sorry, there are many on here that have had it done and in fairness I like the sound better than the Supersprints on the MC

 

[srhutch]

Hello Machine Monkey!

I just sent you a PM on the topic of OEM back boxes and ask if you could come to the rescue...let me know.

A

Didn’t you buy a set and get them shipped to be modified by someone?

I did... and haven't heard back much since they were delivered to the workshop...

How long has he had them?

 

[Machine monkey]

So this is what i can do. Cut it open remove the gubbins. Then build and weld in this type of resonating chamber. the wadding is then replaced and welded up. This gives a deeper slightly louder exhaust. with many more pops bangs and excitement.

 

[Joneeboy]

I better start hunting for a spare set of backbones, then!

 

[Attilio]

Didn’t you buy a set and get them shipped to be modified by someone?

I did... and haven't heard back much since they were delivered to the workshop...

How long has he had them?

If I remember correctly they were delivered on May 10th...

 

[Machine monkey]

Mine are still for sale too guys :rofl:

 

[srhutch]

I better start hunting for a spare set of backbones, then!

I have a modded set sitting on the shelf. Just need the trumpets replacing.