to be honest, I don't really know. The engine itself was bone stock, only breathing and exhaust were improved. The complete spec on the D14 was a short ram intake with BMC airbox, ESI exhaust manifold, supersprint cat replacement and a Nakayama exhaust. The D14 was just a quick car for what is was. I found my readout again of the rolling test, and it was 99.4 hp. On an earlier test with a Gtech it also hit 100kmh in 9.34 seconds.How did you get it to hit 99?