3.2 Autothority chip for use with SSIs and 91 octane $250 delivered in the US.

3.6 NBD Racing dual program chip. Stock 3.6 and extra performance with a flip of the switch. Based on the Cyntek chip with mods by Ingo Schmitz (think DME rebuilder guru). This chip was used by Tyson and Jack for their first place finish in The Race Across America. $300 delivered in the US.

I also used this chip and was well satisfied with it. I was able to pass CA smog in the stock configuration and 25 added HP in the performance mode. I never tried to pass smog with he performance chip but you never know......

Money back if not satisfied with return of the item.