I have looked here in the for sale items and at the Ebay headers. Evereything is geared to the 92 M50 and newer. I suspect that the same Headers will go onto the 91 non-vanos, but people dont seem willing on Ebay to take the risk and answer the question. If its an extra O2 sensor issue I aint scared to modify that. Have put 91 M50 into 90 525 where M20 was not a huge modification but some. Please?????????????? Can someone tell me will they bolt up to engine and fit relitively well into 90 E34 525? And if I am looking to buy either here or through Ebay, dont have huge budget right now for $700 dollor sets, Ebayers or used or new inexpensive from here would be great.
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yes, it bolts up fine to a non vanos m50. i put ebay headers on the engine from a 91 e34 m50 yesterday -
Thanx Kaos. Can you tell me which ones you picked up and what you think of them?Comment
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It was the ones that are all over ebay. Essentially, the cheap stainless ones.
They're ok. They look fairly nice. I got BMW gaskets cuz the ones that came with looked crappy. Since it's thinner pipe, there's more rasp in the exhaust than I would like, but when I get the resonator installed I'm hoping that'll fix it.
I'm having problems getting my O2 sensor in though. There are two options in the headers. Putting it in the front 3 cylinder header causes the O2 sensor to be holding back the second pipe with tremendous force. (I can't get it in, might be able to with a prybar and indiscriminant damage.) the second one makes it hit the firewall. I'm gonna go at it tomorrow with a chisel or something and see if I can take a small chunk of foam and the sheet steel.
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