Mikel et al, can you guys help me out? It has been 3 days and I'm still anxiously waiting for your suggestion/answer. I've already re-loaded the 87 octane tune with 87 octane gas but not too happy about the mediocre performance for the money that I spent for the programmer. If I continue to use the ...

I was wondering why you guys don't have a 91 tune? California is not the only state with 91 only. Will that be an option in the near future?

Mikel et al, Do you have any more ideas/suggestions? Should I take mine in for a dyno tune?

Mikel,

I loaded the 93 tune and retarded the timing w/ a .5 deg increment to -3 deg but the engine still knock during acceleration so I gave up and re-loaded the 87 tune. Do you have any other suggestion or I have to stick w/ the 87 tune? Let me know. Can you also clarify question #4 as well ...

Hi Mikel,

Please clarify question #4, so if I tuned the car w/ the 87 or 93 tune, the car can pass smog check without re-installing the factory tune, correct? Thank you so much for your help.

Hi Mikel, I'd like to fine tune my car so can you help address all the questions I have above? Here they are again:

1) With the K&N CAI and x-pipe dual Spintech mufflers exhaust, is my car already running lean with the factory tune? Do I need to inject more gas for a better fuel/air mixture prior ...

Thanks Mikel. Are you the same person that I talked to when I called in this morning? Anyway, another question: Since I have the K&N CAI (w/ stock mass air sensor & throttle body though) and x-pipe true dual Spintech mufflers exhaust. With more cold air intake and better exhaust flow, is my car ...

I've also noticed that not all gasoline are the same, one could cause pinging and other don't. Not sure if it has to do w/ the additives they put into their gasoline or just the quality of the gasoline. I currently use 76 Gasoline and it's one of the top tiers. Btw, later on when I need to take the ...

The distributor where I bought the programmer from told me retarding the timing won't fix the pinging using the 93 octane tune w/ 91 octane gas but I don't believe that. At what point of retarding the timing (how many degree) where I should just use the 87 octane tune? Thanks.

U7146 2004 Mustang V6 Automatic, K&N CAI, True Dual Spintech Exhaust w/ x-pipe

I recently purchased the Diablosport above and after installing the 87 Octane tuning, I've noticed a slight improvement in performance but would like to get a little more for the money I spent on the programmer. I then ...