
Underground Racing and Heffner Performance are tuners well known for their ultra horsepower twin turbo builds. They are especially well known for building 1000 Read More >>

We recently obtained a video of a 2006 Heffner modified Ford GT doing some testing against a 2012 Mercedes Benz Read More >>

A stock 570 horsepower Lamborghini Gallardo and 530 horsepower Nissan GTR are generally quick enough for most people. However, there Read More >>
We all now know that Lamborghini’s successor to the Murcielago, the Aventador LP700-4, is a very special vehicle. As such, Read More >>
(Update – third video added @ 9:04 EST on 9/22/2011) These three (3) videos (make sure to scroll down) show Read More >>