Originally Posted by Mike

The GTR was designed from the beginning for FI. Compression ratios, internal parts, cooling system, everything is designed from the get go to work together. Its definitely not the same as adding it to a non FI car.

I had to de-supercharge my C6 for the exact same reasons once I tried tracking it, it just couldn't keep the oil cool enough.

If you really want FI for the track and are going to get another car, that white one in modified magazine is for sale, and for a lot less than a used GT3 or GTR, and its a fully sorted track car.