Milltek Troubles |
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PikeyM3
Really Senior Member I E30 M3 Joined: 31-May-2003 Location: Cheltenham - Uk Status: Offline Points: 438 |
Posted: 03-May-2004 at 17:35 |
The new M3 CSL's exhaust is made out of Titanium and is actually thinner than the standard exhaust. I thought scorpion exhausts were suppose to reduce horsepower as they have the twin system rather than the single which Milltek have? Pikey |
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Old enough to know better, too young to care!
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Richard von Bat
Groupie Joined: 30-October-2003 Location: United Kingdom Status: Offline Points: 95 |
Posted: 03-May-2004 at 16:53 |
Probably will not remove the cats. There does not seem to be much of a difference removed or otherwise, I'd say the same as one experiences in engine power between a 'hot day' and a 'wet' day. Also with them fitted they are a little quieter - hopefully attracting less attention. Trouble is they are becoming a little common in our parts we have 3 red, 1 black Sport Evos and 1 red E30 burning up our locality! |
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richard
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John W
Really Senior Member II Joined: 01-November-2002 Location: United Kingdom Status: Offline Points: 630 |
Posted: 03-May-2004 at 13:40 |
Are you going to remove the cats? Perhaps you would gain a bit of power ths way? |
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Richard von Bat
Groupie Joined: 30-October-2003 Location: United Kingdom Status: Offline Points: 95 |
Posted: 03-May-2004 at 13:23 |
I have just replaced my 14 year old exhaust with an OEM after spending the last year repeatedly pulling off the original and rewelding various holes. Coughing up the best part of £1100 and now hearing these tales is making me feel alot better! The Miltek was an option for the price saving but I recall coming across an article (cannot remember where) stating that stainless steel is particularly unsuitable as the engine is too harsh and will cause the more rigid nature of SS to either split or crack, the problems stated would seem to bear this out. Uwe mentioned that the OEM was stainless steel but this is not correct and the more flexible nature of mild steel would seem to be the answer - (it is only the decorative twin pipes out the back which are ss). There is another factor about stainless steel exhausts that has been topical over the years, not withstanding the problems of the harshness it has been said that when a good standard system wears out that is about time for the rest to be replaced i.e. baffles full up with carbon etc. The stainless that goes on and on can cause performance loss through being internally past it. The new CSL M3 has a lightened exhaust system fitted and must check out the spec to see if this was mild steel or stainless.
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richard
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therealmccoy
Really Senior Member II Joined: 27-April-2003 Location: United Kingdom Status: Offline Points: 552 |
Posted: 03-May-2004 at 12:35 |
How the mighty have fallen! I have a Scorpion DTM on mine and apart from the mount for the backbox sheering with enthusiastic driving (heard this happend to all eventually??), I know of no other real problems. I know they are loud - but that's part of the appeal
So where now then?? First was the Scorpion, then came the SuperSprint then Miltek... James |
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gary
Really Senior Member II Just Call me Wendy ;-) Joined: 16-October-2002 Location: Scotland Status: Offline Points: 4263 |
Posted: 03-May-2004 at 12:25 |
I was part of the group buy and have had no problems with mine so farand I use mine as a daily driver
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Sunny
Groupie Joined: 04-February-2003 Location: United Kingdom Status: Offline Points: 66 |
Posted: 01-May-2004 at 15:05 |
I also have a problem with my Miltek exhaust.
Had the car on a ramp yesterday and found that the center box has a small slit in it at the front edge of the center box. It looks like the Stainless steel where the welds are for the baffles is very thin. I must admit that I have scraped the exhaust a few times going over sleeping policemen but surely it should not fall apart like this? Sunny |
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Darren M
Really Senior Member II Joined: 31-October-2002 Location: United Kingdom Status: Offline Points: 533 |
Posted: 01-May-2004 at 14:38 |
Great. So I may have this to look forward to.eventually it`ll spilt wide open and spill it`s internals out before falling to the ground. Oh well....anyone organising a Supersprint group buy ? |
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PikeyM3
Really Senior Member I E30 M3 Joined: 31-May-2003 Location: Cheltenham - Uk Status: Offline Points: 438 |
Posted: 01-May-2004 at 14:07 |
My exhaust note has definitely 'Matured' as well. The buzz/rattle you refer too, I beleive, is the internal baffles in the centre box coming apart due to the vibrations. The centre box split on top of the centre box where the welds are, so you can't see it when you look up at the exhaust from underneath. Pikey |
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Old enough to know better, too young to care!
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M3Pilot
Really Senior Member I Joined: 31-October-2002 Location: United Kingdom Status: Offline Points: 340 |
Posted: 30-April-2004 at 22:30 |
I think there made from 304
Edited by M3Pilot |
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UweM3
Moderator Group Joined: 11-February-2003 Location: United Kingdom Status: Offline Points: 5445 |
Posted: 30-April-2004 at 17:17 |
And not to mention the saving in price if you keep the wall thickness down..........
Generally stainless steel is much more resistant against fatigue cracks than mild steel. As long you keep the correct thickness. It also depends what quality grade of stainless is used. Does anybody know the materisl grade of the Miltek? |
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E61 520d, slow and buzzy but my wallet likes the mpg.....
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M3Pilot
Really Senior Member I Joined: 31-October-2002 Location: United Kingdom Status: Offline Points: 340 |
Posted: 30-April-2004 at 14:02 |
I had my Supersprint for 3 years odd and it's been fine. The trouble with a stainless exhaust is for the most part they are made form very thin walled material. They don't need to be thick for rust protection like a decent mild steel one will be. This is why a a stainless exhuast can puncture very easily and have a slightly hollow sound where as one like the Supersprint will sound more rouned. The exhuast they make for the M3 hasn't been around for that long and it wasn't around when I bought mine.
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kevin
Bavarian-Board Contributor Joined: 29-November-2002 Location: Camberley, Surrey Status: Offline Points: 3189 |
Posted: 30-April-2004 at 13:47 |
Darren, if mine only lasts for 30k miles then I will be happy as that would be about 6 years of driving. Of course I expect it to last much longer.
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Kevin
'04 E46 330Ci Convertible '08 E61 535d Touring (TorqueMeister Towbarge) ’95 E34 M5 ’89 E30 M3 (Cecotto) |
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UweM3
Moderator Group Joined: 11-February-2003 Location: United Kingdom Status: Offline Points: 5445 |
Posted: 30-April-2004 at 13:21 |
Interessting opinion of ML, so even BMW does it wrong because the OM exhaust is made of stainless. |
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E61 520d, slow and buzzy but my wallet likes the mpg.....
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kevin
Bavarian-Board Contributor Joined: 29-November-2002 Location: Camberley, Surrey Status: Offline Points: 3189 |
Posted: 30-April-2004 at 13:15 |
I didn't get Milltek because I thought it was cheaper, in fact judging by the price of the Scorpion to Floodys, the Milltek is more expensive.
I'm going to see how things pan out and how Milltek handle things with Pottsy's. I will also be keeping a very close eye on it as well just in case it is an inherent problem. |
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Kevin
'04 E46 330Ci Convertible '08 E61 535d Touring (TorqueMeister Towbarge) ’95 E34 M5 ’89 E30 M3 (Cecotto) |
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Darren M
Really Senior Member II Joined: 31-October-2002 Location: United Kingdom Status: Offline Points: 533 |
Posted: 30-April-2004 at 13:11 |
Bought it with the group buy last year(if anyone remembers that) - I think around February time. My car was MOT`d straight afterwards and about one month ago it was MOT`d again so I guess that`s one year and one month with the Milltek. It is holding together but the buzz\vibration can be quite loud with the windows open especially. THe car has covered not that far off of 30k miles in this time but the buzz started some time ago - think it was the back end of last summer so probably only 5 months into having it fitted! Was quite low to start with but has got louder. The exhaust itself is louder than when new but sounds great which is why I say the sound has matured well except for the buzz\rattle. Milage terms I didn`t do quite so many miles to start with, so it probalby started buzzing around 10k miles or a bit more. Edited by Darren M |
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DAWIEM3
Really Senior Member I Joined: 17-February-2004 Location: United Kingdom Status: Offline Points: 489 |
Posted: 30-April-2004 at 13:02 |
And some say that Scorpion is poor quality. It seems everyone bought bargain Milltek`s. Defination of a bargain, Where both sides think they have cheated each other. |
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Floody
Really Senior Member II Joined: 14-April-2004 Location: U.K Darlington (Croft)!! Status: Offline Points: 1339 |
Posted: 30-April-2004 at 10:20 |
My car is fitted with a "Scorpion". It was fitted by the previous owner 4yrs. ago. Got the bill at home think its for £400.00 plus fitting. The only thing I have done was to cut off the DTM up swept tail pipes and have stright ones welded on.
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215DMX
Really Senior Member II Joined: 14-May-2003 Location: Croydon Status: Offline Points: 1780 |
Posted: 30-April-2004 at 09:31 |
This is all quite intresting to read, as I was going to get one next month (still might of course) but it reminds me that Barry from ML once told me "don't bother with a stainless system on an M3 theres too much vibration and it will crack, stick with milkd steel" . . .
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kevin
Bavarian-Board Contributor Joined: 29-November-2002 Location: Camberley, Surrey Status: Offline Points: 3189 |
Posted: 30-April-2004 at 09:08 |
Pottsy,
I hope Milltek look after you and it was a one duff one. Still not a nice experience, I will get mine checked early next in preparation for Cadwell Park. Darren M, How long have you had yours for and how many miles have you covered with it? |
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Kevin
'04 E46 330Ci Convertible '08 E61 535d Touring (TorqueMeister Towbarge) ’95 E34 M5 ’89 E30 M3 (Cecotto) |
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