When the mechanical diesel engine days came to an end in the mid '90s, it was the dawning of the electronically controlled diesel era, which has ballooned into the current plug-and-play culture we're ...

Just drop in a magic “chip” and your car or truck suddenly takes on NASCAR-like qualities ─ able to accelerate quicker or even achieve better gas mileage. Sounds easy, doesn’t it? Too good to be true?

-it seems that those three little letters strike fear into many a promoter, track owner, or sanction head whenever they hear it. ECU stands for Engine Control Unit. Also called an ECM (Engine Control ...