At $182,900 (plus delivery fees), the 502-horsepower Porsche 911 GT3 is already a rare, expensive performance car. In fact, it's a fantastic performer, capable of lapping the infamous Nurburgring in under seven minutes. The only way to go faster with the GT3 is to spring for the GT3 RS, which is an extra $58,400. Or, you can save $1,100 and get the Manthey-Racing Performance Kit for $57,300. That is, without the optional wheels, anyway.
Porsche fans will recognize Manthey-Racing right away, and this particular kit was developed specifically for the 911 GT3 to make it sharper and faster on a track without compromising its "daily usability." It starts with a larger lip spoiler and mini wings on the front fascia, working with aero changes underneath to generate more downforce on the front wheels. At the back you'll find a wider spoiler with a Gurney flap, larger end plates, and a revised angle. You'll also notice aero discs for the rear wheels, and at the very back, the rear diffuser has larger fins made from carbon fiber reinforced plastic.
