If you are looking at single sided options you should also look at www.myminipparts.com single sided muffler. Talk to Peter of MyMini who has these built - quality is good and it is not loud at all but does offer a deeper throatier lower note. At least one Nam MEMEMBER IS RUNNING IT - DID A NICE POST SO DO A SEARCH.

 

Searching through some threads I just found this one. I put the MyMINI exhaust on my S last week. It is definitely louder and throatier than stock. If this is "not loud at all" I would hate to see what a Borla Sport or Magnaflow is. It seems pretty loud to me. It would be nice to meet up with some other MINIs running aftermarket exhausts and compare.

 

I have a Helix13 on my Cooper, and it is pretty loud although not REAL obnoxious. Inside noise when the windows are up is there, and is in form of a drone.

I have a Milltek Sport on my S and it is VERY quiet until pushed. Normally running the car produces a nice burble as the car rolls to a stop. When the windows are raised, I cannot distinguish much inside noise at all besides the supercharger and CAI whine.

 

Just goes to show that one mans food is another mans poison.

I have heard the MyMini exhaust and found it to be sportier than stock but very mild and tame. My system would freak you out!

 

Maybe it is just all the change that rattles around at 3000rpm under the hand brake. That might intensify the volume inside the car. I really need to get out and hear some other exhausts.

 

There was an exhaust sound-off at one event long ago, that had uploaded recordings of all the different exhausts they tested ... don't remember now even what website it was ...

 

Try a 1-ball - but read the MINI2 thread by Roland on exhaust back pressure testing before you do anything.

 

I keep comming back to the JCW exhaust - quiet and no warranty issues with maybe 90% of the performance improvement that a Milltek/Borla/etc. have. Am I missing something?

 

from my recollection (back presure thread at MINI2) the JWC system did not test well from a back pressure perspective - for some reason I think it was worse than the s system. I could be wrong and am too lazy to read the thread again.

Nothing stopping you from 1-balling the jwc system. The 1-ball does a nice job from a back pressure perspective.

 

How is one to one-ball the JWC system? If my understanding of the one-ball procedure is corect, it involves removing one of the resonators (mufflers). If I am correct in my understanding of the one-ball procedure, the reason it works for the stock system, is because the stock mufflers are connected in series. The JCW system utilizes two mufflers connected in parallel; removing one muffler won't produce the same results for the JCW.

 

I thought it was the same layout just larger tubing?

 

The reason seemed to be that the JCW exhaust is now a universal fit for both cabrio and hardtop, and includes a section of flattened pipe to clear the cabrio frame. The earlier version of the JCW exhaust did not have this flattened section but it was not tested. Some hardtop owners have replaced the flattened section with regular pipe.

 

caminifan is correct about the JCW exhaust layout; you can see where the pipe splits left/right in this picture:

 

Bummer about the flattened tubing section. Any idea where the flattened tubing is located? (And how hard it is to replace the section of flattened tubing.)

 

www.myminiparts.com has a resonator emliminator that he says he sells alot of http://www.myminiparts.com/products.php?cat=7&pg=3

maybe this will give you what you seek.

 

I think that the resonator eliminator is part of the one-ball conversion procedure - either you buy it from myminiparts.com or you fabricate one up yourself.

My fist preference is the JCW - until I learned about the flattened section of tubing.

 

borla race.






jk.. jcw is the quitest..

 

As pointed out the JWC and S exhaust systems are different. This resonator eliminator isjust for the JWC. The S exhaust does not have a resonator in that location so its seperate from the 1-ball.

 

There are photos in this thread (very interesting reading too): http://www.mini2.com/forum/engine-dr...g-results.html

 

Anyone have or want to make a video clip of a 1-Ball drive by? I have heard the clips of the exhaust stationary but was wondering what it sounded like in motion or under load.

 

Something to keep in mind... most of the impressions I have read about the Milltek and the clips I found in the exhaust thread seem to refer to a cat-back only scenario. I just had both the Milltek header and cat-back installed, and sound is louder than expected. I'm still deciding if I like it. Slight drone in the cabin cruising between 3-4000 rpm.

I imagine that adding a header with a high-flow cat would increase the volume regardless of which cat-back exhaust was installed.

 

thank you all for your input. I am still deciding, and to give more details... I got the stage 3 kit from mini mania and the exhaust that I have is a single pipe about 3in from header back... Of course the cat is somewhere in the middle, but its not the typical exhaust setup... They don't even sell it in the kit any more... So all that to say that I am running a single pipe about 3in and have an upgraded header. My next question as well is, where is the best place to pick up the said exhausts that you all are discussing... I am probably leaning towards the Milltek or the 1-ball or the devil exhaust system (which I have only heard one thing about, so if anyone knows any more about it, then let me know...) by the way, you all are the coolest for posting so much info. I am proud to own a mini as every sticks together and tries to help each other out.
thanks

Jeremiah

 

Now that I have had my MyMINI exhaust for a while I thought I would update this thread. The exhaust has mellowed down and quieted quite a bit. It does have a bit of resonance right around 3k rpm but other than that is pretty subdued.

I heard the milltek header/catback combo and it is pretty loud. But I guess that is the case with most. I wonder if I should one-ball my stock exhaust and see what the difference is like?

 

So if one eventually plans on a quiet exhaust like the milltek, which header would he be looking at as well? The milltek is loud and breaks cats (according to a few posters), so which is quiet?

 

do that whole duel exhaust thing. it's awsome looking . really old school. wish it'd been out prior to layin' down for the alta.(which is very load btw) which i love .