M3 Driveshaft Upgrade/// Anything Better???

[PiercedE30]

Driveshaft Shop sells single piece driveshafts for BMW's. Check out BF.c, there are a couple of FI'd people running them. I think they are about 900 bucks though.

[TwoJ's]

My 2.7 has all 89 325i 1.3 motronic parts except the i head so the 2.7 see's 6800rpms often and the rest of the es is not stock by any means...

I'm surprised no one's said this yet, but you're not doing yourself any good revving it that high. Your head does not have the valve springs meant to rev that high, nor does it have a cam that will produce any power up there.

And as for the drive shaft, I'm no help. I'd just stick with a good used one just like everyone has already suggested.