no experience with megasquirt, just read what i can. apparrently it's pretty good, i mean it's probably no tec3r but definatly worth the money. you can either buy it as a kit or there are a few people that build them (who know what they're doing) and sell them ready to install.
check out http://www.diyautotune.com
I thought megasquirt was dead and VEMS was the big ticket now
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Elwood:We're 105 miles from Chicago, we have a full tank of gas, half pack of cigarettes, it's dark out and we're wearing sunglasses.
Jake: Hit it.