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I've already changed my exhaust. My dealer told me that he has already changed the Y pipes between the cat. and the exhaust, and it made a great sound. It was a hand-made modification. I don't know if there are already "official" Y sold in europe...

I'm afraid if I change it that'll make too much noise. Any advices ?
 

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I had a custom made Y-pipe installed on my Stillen Maxima well before Stillen ever released one. It took the shop about 5hrs to fabricate the new pipe out of mandrel bent steel. I had it dynoed before and after...+19HP to the wheels. No doubt the Y-pipe worked harmonously with the cold air induction and exhaust already on the car.

Yes, mass produced pipes hit the market for half the price I paid, but that was a full year later!! As long as you are confident in the shop's machining and workmanship, I say go for it. If you are in question about that, then wait for the commercial ones to hit the market...this is an M5, not a Maxima.

As far as noise, it will certainly be louder, especially if the stock Y is routed for silencing. If that's the situation, then the gains will be good as a result. (this was the case with my Nissan)
 

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Originally posted by RaMsEs:
I had a custom made Y-pipe installed on my Stillen Maxima well before Stillen ever released one. It took the shop about 5hrs to fabricate the new pipe out of mandrel bent steel. I had it dynoed before and after...+19HP to the wheels. No doubt the Y-pipe worked harmonously with the cold air induction and exhaust already on the car. What

Yes, mass produced pipes hit the market for half the price I paid, but that was a full year later!! As long as you are confident in the shop's machining and workmanship, I say go for it. If you are in question about that, then wait for the commercial ones to hit the market...this is an M5, not a Maxima.

As far as noise, it will certainly be louder, especially if the stock Y is routed for silencing. If that's the situation, then the gains will be good as a result. (this was the case with my Nissan)
What type of Y-pipe are you talking about ? The E39 M-5 already has dual exhaust so no Y-pipe is necessary. Please explain.



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Parkerfe,
You are absolutely right, I don't get my car until October so excuse my ignorance!

Tom,
What is your dealer talking about? Maybe new downpipes? But even then the aftermarket part must have the same diameter so it can fit to the exhaust manifold and cat...so there is nothing to gain unless BMW's pipes are not mandrel bent which I'm reasonably sure they already are.

These swiss shops all sound like a bunch of con-artists. Find some new shops guys!
 

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Discussion Starter #5
Yes, OK i know what you mean. It's not exactly a Y, but two seperated pipes that make a Y sign. more like that : \/
¦¦
But these OEM pipes have silencer components. If you put straight pipes instead of these, the sound becomes much more free.
The hartge-dealer here in Switz. said that he made exactly sth like that with a 328i fitted with the M5 engine ! (see hartge.de), and the sound was gorgeous he said. Even at idle the car was doing a great sound-forget the diesel !

I've already ordered the new pipes. It's still "hand made" because I'm the first he'll install on a M5.
 

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I purchased my M5 from a dealer who also owns a Ferrari Dealership. He has installed on his M5 a tubi exhaust system which is made in Italy and used on Ferraris. The stainless steel exhaust system has an amazing sound associated with it and it increases the torque. I am having it installed on Thursday August 24 2000. The old exhaust takes two persons to lift each exhaust in the old system. If anybody has heard of this system and has experience with it please email me. Thank you Mitch

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Mitch,

What is the cost associated with this exhaust system and what do the pipes look like from behind?(round, square)Have you heard the difference between the new system and the stock? I realize trying to describe the sound in words is difficult at best, but if you could?

Thanks for the attention,
 

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Originally posted by mitchel:
I purchased my M5 from a dealer who also owns a Ferrari Dealership. He has installed on his M5 a tubi exhaust system which is made in Italy and used on Ferraris. The stainless steel exhaust system has an amazing sound associated with it and it increases the torque. I am having it installed on Thursday August 24 2000. The old exhaust takes two persons to lift each exhaust in the old system. If anybody has heard of this system and has experience with it please email me. Thank you Mitch

Yes . Tubi maes a great exhaust system. I have used them on two of my Ferraris in the past. I didn't know they made an exhaust for the M-5. What is the part# and how much does it cost ? A Tubi exhaust for an F-355 is $3500 !!



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[The exhaust pipe is round just like the stock. I originally had the stock installed for two months. The difference in sound is like night and day. The car has a ferrari type sound. The cost of the whole system and installation is $3600.00 US.
 

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Originally posted by MAH:
Mitch,

The cost for the system is around $3600.00 US without any taxes as I converted what I paid in canadian. The part number from Maranello Motors which has a BMW and Ferrari dealership is 12039911000 M5 Tubi Exhaust.
 

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Originally posted by mitchel:
Originally posted by MAH:
Mitch,

The cost for the system is around $3600.00 US without any taxes as I converted what I paid in canadian. The part number from Maranello Motors which has a BMW and Ferrari dealership is 12039911000 M5 Tubi Exhaust.

I've ordered mine direct from Tubistyle USA at a cost of $2100.00 U.S. They are to be shipped to me COD next week. It seems you got ripped if you paid $3600.00 U.S. !!!!



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I just recently joined this board... so I am coming into this discussion a bit late.

I have Supersprint Magnums on my M5... am I to understand that this Y pipe goes between the manifold and the rear exhaust mufflers?
Please explain?

TIA

Andy M.
 
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