best chip for my stock gn???

jk kelly said:
whats the best chip for my stock gn. only thing done is cat is cut off the exhaust

There are two out there. TurboTweak and Extreme by Bob Bailey
Actually a chip for a stock car like that would be my Commander Chip.

What octane is available in your area?

What would a chip do I just bought my first GN its a hot air the only thing done so far is 86 coil pack and the cat cut off