Tiis are becoming rarer every year. You will devaluate a Tii if you "M" it. Oh, I forgot that PT Barnum did say, "there's a sucker born every minute". There are plenty of 2002s with square tailights around for guys to do that to, I guess. If you put an M motor in one, it really wouldn't be a 2002 anymore. For my money, keep a Tii stock, or stock appearing. Too bad you diddn't start out with a 320i or something...No brainer...Sounds like you're milking the car for all it's worth...Oh, that's right, you're campaigning a japanese car aren't you! I hope it doesn't grenade!