Discover 8 twin-turbo V6 engines tuners worship, from Audi's 2.7T to Alfa Romeo's 690T, and why they're modification ...

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?

Forget the factory specs. From 1,000 hp monsters to the V12 that powered a legend, these 10 BMW engines offer the world's ...