The Audi S4 Twin Turbo showing the power!

The new Opel Tigra doing nice burnout and ride on the "Holterberg" in the Netherlands.

The fastes american supercars Salen S7 Twin Turbo at the dragship

The clip showed the american supercars Vector W8 Twin Turbo & Vector M12

G-force modifies his Gallardo thru Heffner Performance. This one-year project adds twin turbos and the car is dynoed at 679rwhp. Valentino takes the car out in Southern California for this historic drive.

The my Lamborghini Gallardo Twin-Turbo during a dyno run

G-force having some fun with 679rwhp of his Gallardo Twin-Turbo

The video featuring the Lamborghini Gallardo Twin Turbo tuned by heffners performance onboard and external view

This is an Ultimate Viper Twin Turbo tuned ride the 1/4 mile in 8.5 @ 174mph

Video of the Twin-Turbo Ford GT tuned by Heffners Performance