Switzer Performance car tuning company in Ohio has a twin turbo kit for the already powerful Porsche 911 GT2. Professional Tuner Swiss team and the guys at SPI has a package to deliver 800 hp Porsche 911 GT2. These figures actually repay the chair, but with regard to Switzerland for a smooth ride with the same power curve. It works on normal 93 octane, and is basically a complete bolt on kit, consisting of the SPI header, aftermarket exhaust, new intercooler setup, and to top it off, two GT30R turbocharger.
ECU is left alone, but the bolt on a set of easy to install for the novice tuner.
