Dyno charts of other S2kI people. The Toda header is definatly giving those numbers on N/A, and on F/I one guy got 23 HP with just adding the header. Also, the cold air intakes are all giving around 5-9 HP, Spoon says their TB gives 6 HP. The Toda Cams Ver.2 are suppsoed to give 15 HP, they have the Dyno posted somewhere. As for the straight pipe, and exhaust, I will be having my car dynoed with both soon, and I can for sure tell you that I can feel a speed difference with the exhaust, and straight pipe. I have no knowledge of the gains of the compression upping smaller head gasket, but I would suppose it would be around 3-5 HP. Port and Polish should give around 3-5 HP. It is just a combp off all of these parts that would make me beleive that 12 seconds is possible with N/A
Ron Smith

 

BTW... he quoted Road & Track and you brought out the car&driver article. So he wasn't lying. It doesn't matter...different cars on different days with different conditions and drivers.

Keep your 350Z it is a great car as well, and seems to suit your tastes more. Then trade your mom for the S2K once in awhile for some extra fun. Best of both worlds.