Well we can argue, or we can have a discussion.
M5 axle upgrade? Sorry, my mistake, that's the M3 upgrade. That option requires 17" wheels to clear the brakes. You can't just bolt in the M3 half shafts. How much is that upgrade these days? $4,000 or so, as I recall, probably more now, if it's even available anymore.
There are a number of "vendors" whom I don't care for, wouldn't seriously consider buying their parts. Roush for one, to much money, not good enough customer service and questionable reliability. Shelby is another, just to much money, in general, for my taste. I'd go with KC for my motor, or build it myself. BDR? By the time I got the options I want (like stronger half shafts and LSD) it would be very close to the cost of an SPF, which I would prefer to have anyway. There are other reasons I wouldn't want a BDR, but no need to bash anyone.
3.9 LSD is one option a guy could run with, combined with slicks and a TKO, your looking to snap a half shaft. 3.46 is close enough to 3.5 to be a reasonable number. TO low in my opinion, WAY to low for a T5.
Like all of us, I have reasons for products I like or dislike, products I prefer one over another. So what else is new?
Cashburn, the issue here isn't the "typical" BDR, it's 0-60 in the 4 second range. 3.15 rear gear ratio need not apply. So, quit making stuff up.
