have any e34 owners installed upgrade cpu performance chips. There's a number of options but want to know if anyone has specific feedback with the similar car. I have a '90 525. It's a Euro spec so not sure if the N. American tuned chips would be different for the N.Amer models?

if anyone has chipped their 525 i want to hear about it. Thanks!

I'm not sure if EAT (dsylvatech.ca, or something like that)chips will fit the Euro models, or maybe there is even a Euro chip. But just use the search function brotha...

I just installed an EAT chip in my '92 525 a few days ago, and I am quite impressed with the performance difference. Well worth the mod.

You may want to contact them directly regarding a tune for the Euro market.

i had the turner/conforti chip. noticeable difference in acceleration and over all power.

http://www.dsylva-tech.ca/

http://forums.bimmerforums.com/forum/showthread.php?t=428306

I have been trying to chip my '95 540iA, and it ain't easy. Conforti doesn't make a chip for my ECU/software version combo, and I'm waiting for a response from EAT but it doesn't look good, judging from their website.

Does anyone here have this stupid ECU part number?: 0 261 200 404
AND this crappy software version part number?: 1744606

I have also talked to Jet Chips about their "ECM Recalibration Kit", where you send them your entire ECM box and I assume they put a stinkin' chip in the thing, or reflash the factory chip. Trying to get technical info out of their sales rep was like pulling teeth. :mad Has anyone done this "recalibration" thing from Jet Chips? He said the part number doesn't matter, but I don't think he knows his anus from his elbow.

Eat

I have been trying to chip my '95 540iA, and it ain't easy. Conforti doesn't make a chip for my ECU/software version combo, and I'm waiting for a response from EAT but it doesn't look good, judging from their website.

Does anyone here have this stupid ECU part number?: 0 261 200 404
AND this crappy software version part number?: 1744606

I have also talked to Jet Chips about their "ECM Recalibration Kit", where you send them your entire ECM box and I assume they put a stinkin' chip in the thing, or reflash the factory chip. Trying to get technical info out of their sales rep was like pulling teeth. :mad Has anyone done this "recalibration" thing from Jet Chips? He said the part number doesn't matter, but I don't think he knows his anus from his elbow.

still strikes me as odd... i've got the conforti chip in my '95 540...

Eat

Yes. One word to describe the power gains...ridiculous. :cool

Any opinions on the best M20 chip?

Eat in mine - noticeable difference - email him and ask if itll fit your ride - good luck