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Thread: euro headers
09-13-2006 04:28 AM #1
A friend is going to sell me his M6 Euro headers in excellent condition. Don't worry I'm not paying $$$$$$. They were just sitting in his basement from a parted out 88 M6. I'm in the process of getting my engine rebuilt.(head came off today) I mentioned it to the mechanic who is working on the project and he told me not to waste my $$. Not because they don't produce any horsepower gains but, what a [Oops!] they are to install in an E28. The other mechanic working on another project at the shop swears by them! I have Fahey Track pipes and know the flanges have to be replaced. Good think my friend owns a muffler/race shop!
I have searched the archives and everyone seems to be concerned about the flange issue. My mechanic told me, some pipes may have to be heated up and dented to clear bushings and body parts. He stated the M5 was not meant to have headers, just the M6. His thick German accent tells me he is right. Can anyone tell me if they had issues with headers hitting or rubbing parts of the car? I would rather keep the ugly US headers than put dents on such expensive steel. BTW, mods to the engine are exhaust cam gear, chip and cold air intake from a famous company in nothern CA. These items will be reinstalled during the rebuild. My mechanic tells me no one can say for sure how much hp or torque the headers will give, (that will be an ongoing debate unitl Armagedon) but, he stated his personal M5 did have noticeable "feel it on your seat" improvement espeacially on the top end. Plus, cat free with a factory US exhaust (Euro muffler is more restrictive since they were not designed to have a cork w/ them) The exhaust bark seems worth the hassle. Thanks in advance for your input.
09-14-2006 11:36 AM #2
- Sheffield Lake, OH, United StatesMember No: 20950
- Join Date
- Dec 2001
- Rep Power
The Euro headers are the same for the Euro E24 M635CSI and the Euro E28 M5. There should be no fitment issues beyond making them fit to the Fahey track pipe. I would actually recommend having track pipes custom made instead of tearing up the Fahey pipes. The resale value on Fahey pipes would likely pay for the custom pipes with plenty left over.
I have Euro M5/M6 headers on my US M6 with the 95 Euro M5 3.8L engine and six speed transmission. The 95 Euro M5 headers would not fit in the M6, but the older Euros fit perfectly. They are a bit tough to get in, but it is doable and no modifications should be necessary.
88 M6 with 3.8L S38B38 engine and six speed
98 M3 (wife's car)
91 525i (wife's car)
09-15-2006 12:12 AM #3
Re: Thanks scott, they fit
I just spoke to the "head" mechanic at my shop and he said the engine rebuilder may have been smokin when he told me the headers wouldn't fit. I think he just didn't want the extra work involved. My exhaust man is waiting and ready to make me custom track pipe. You are right the Fahey pipes are worth $$.
09-17-2006 07:21 PM #4
10-15-2006 08:09 PM #5
10-15-2006 08:10 PM #6
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