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In Reply to: Re: Custom, YES, off shelf, NO... posted by Douglas on March 17, 2002 at 23:44:01:
Not much bolt on that really works.
Shrick cams (kinda bolt on but not easy), increase displacement, maybe MAF and Euro headers. Euro exhaust (no cat) perhaps.
I just try to keep my car extremely well tuned (plugs, maint. items, etc.)
E34 motor would really be the way to go.
Korman does the stroker engine for the e28 and e34 M5, they will stroke in to 3.9 litres. This will give you around 375 hp. The only problem is its pricey, around 20K.