It's kind of weird to say, considering their original power, but Lamborghinis with Underground Racing performance kits are sleepers. The innerworkings of these cars are completely customized, including a tuned EMS, redone fuel systems, custom clutches, custom built axles, and of course, the addition of two powerful turbochargers. For 150 G's, you can get yourself a 1,200hp Aventador and destroy the hell out of any other Lambos you see.