This is one of the first projects we’ve covered from the lesser known tuning company ATT-TEC who have done a good job with this BMW M3 convertible. By giving it an increase of power with a G-Power tuning kit, the stock performance numbers have seen a jump from 420 PS to 520 PS or 513 horsepower. This is a significant boost for the price of only €11,430 or US $15,000. Installation from the ATT-TEC tuners will run €1,310 or US $1,720. These prices do not include the new coilovers, wheels or exterior styling parts which we’ll get into next.
On the outside, the ATT-TEC BMW M3 was covered with a two-tone matte black foil wrap with visible carbon fiber sections. This costs €2,600 or US$3,420 for the car wrap, and is a great investment for customers looking to project their expensive rides. Meanwhile, brand new 20-inch ADV.1 alloy rims wrapped in Vredestein Ultrac Sessanta high performance tires measuring 245/30/R20 up front and 295/20/R20 at the rear give it an extra stealth appearance.
All this aftermarket tuning sits on a new set of coilovers to give it that sports car feel and improved handling. The final price for everything mentioned above, installed on your BMW M3 will set you back around €26,573 or US $35,000.