JCW exhaust
RealOEM.com is your friend... 
R53 Cooper S JOHN COOPER WORKS TUNINGKIT 210 HP
Doesn't appear to be just ONE part number for the exhaust, but you could order the various parts for it and assemble it...
18111170941 GASKET
18100301876 CENTER SILENCER
18100303296 CLAMPING BUSH
18100395483 SPORTS REAR SILENCER
82120303295 EXHAUST PIPE EXTENSION CHROME

R53 Cooper S JOHN COOPER WORKS TUNINGKIT 210 HP
Doesn't appear to be just ONE part number for the exhaust, but you could order the various parts for it and assemble it...
18111170941 GASKET
18100301876 CENTER SILENCER
18100303296 CLAMPING BUSH
18100395483 SPORTS REAR SILENCER
82120303295 EXHAUST PIPE EXTENSION CHROME
Last edited by Edge; Nov 30, 2008 at 08:18 PM. Reason: Corrected part number for SPORTS REAR SILENCER
Think you can verify these are the correct R53 parts I need?
I'm not sure if you can still get the "pre-R52" rear silencer(like mine
) without the crushed pipe.Like I said in my PM, check the number at your dealer...if you have any problems, just let me know.
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On second thoughts though, I think that's the one. I'll edit my earlier post for posterity.
Actually no, if you read it properly, it seems that the 875 was replaced by 874. That's why I posted 874... although there is yet another number, that might be the latest one: 18100395483. 
On second thoughts though, I think that's the one. I'll edit my earlier post for posterity.

On second thoughts though, I think that's the one. I'll edit my earlier post for posterity.
While realoem is great to have, it's not 100%. I'll check the numbers when I go back to work on Tuesday.
Mine will be for sale soon(hopefully) as soon as I get the R56 rear section on.
That still doesn't really explain how a part listed as "up to 01/2004" would be the current part... ?
Manufacturers have to supply stock parts for 10 years. Accessory parts they can kill at any time even strictly dealer installed stuff like the JCW "kits".
Just make a full exhaust.
it will be cheaper and probably flow better than the JCW.
Just make a full exhaust.
it will be cheaper and probably flow better than the JCW.
This is correct...the 875 is still a good number, and would be the one to order for production dates up to 01/2004...none in the country, 13 in Germany...
...the 483 has been replaced by 18 20 7 545 128 for production dates after 01/2004...5 in the NJ PDC.
...the 483 has been replaced by 18 20 7 545 128 for production dates after 01/2004...5 in the NJ PDC.
"Convertible Kink"
Ok, sorry to ressurect, but I'm still a bit confused, between 875, 874, and 483, now 128??
Which, JCW exhausts DO NOT have the "Convertible Kink" (Crushed Pipe)??
Partsman, I was under the impression that the only difference were the hanger locations for the rear silencers....can't this system be fabricated with hangers to fit a 03 MCS?
I would have to guess that the part number for after 01/2004 will have the kink, because we've had R53 factory JCWs in the shop with the kink in the pipe.
The early JCW rear silencer(before the convertible arrived) did not have a kink(flat section) at the "Y". The convertible has additional under body bracing that required MINI to basically flatten or kink the pipe right where it splits to the mufflers.
As far as the hangers are concerned, depending on which '04 JCW exhaust you are looking at...you may or may not have to do anything to it. If it's the later '04 exhaust, I think you will just need to bend the inner hanger to face the other way.
Hope that helps...if you have any more questions, feel free to ask.
I have the "875" part number on my car, and it does not have the convertible kink in the pipe.
I would have to guess that the part number for after 01/2004 will have the kink, because we've had R53 factory JCWs in the shop with the kink in the pipe.
Hey Dave...I received your email, but i'll just reply here.
The early JCW rear silencer(before the convertible arrived) did not have a kink(flat section) at the "Y". The convertible has additional under body bracing that required MINI to basically flatten or kink the pipe right where it splits to the mufflers.
As far as the hangers are concerned, depending on which '04 JCW exhaust you are looking at...you may or may not have to do anything to it. If it's the later '04 exhaust, I think you will just need to bend the inner hanger to face the other way.
Hope that helps...if you have any more questions, feel free to ask.
I would have to guess that the part number for after 01/2004 will have the kink, because we've had R53 factory JCWs in the shop with the kink in the pipe.
Hey Dave...I received your email, but i'll just reply here.
The early JCW rear silencer(before the convertible arrived) did not have a kink(flat section) at the "Y". The convertible has additional under body bracing that required MINI to basically flatten or kink the pipe right where it splits to the mufflers.
As far as the hangers are concerned, depending on which '04 JCW exhaust you are looking at...you may or may not have to do anything to it. If it's the later '04 exhaust, I think you will just need to bend the inner hanger to face the other way.
Hope that helps...if you have any more questions, feel free to ask.
I get the sense from the posts that this kink is not desirable and somewhat diminishes the flow of exhaust to the silencers.
Thanks for the help!
(Geoff will be working some of his magic on the MINI, see you soon)


