Well...thats a crap shoot. All depends on how far off your tune is. You can usually pick up a few ponies. But some have gained as much as 15+ hp on a basically stock car.

Have you dynoed Will? what did your AF look like?

Plus...once you pay for initial tuning. Its just a small amount each time thereafter when you upgrade.

 

I think Jeremy recently did a z06 and found `15 extra ponies for the guy on the stock motor!

 

i did a pcm tune on my basically stock LT1, and i can feel the difference. My car runs a lot smoother and sounds a lot better. Plus i can upgrade for much less whenever i want. So i believe it was a great investment.

 

To my understanding he does what ever you want. He will also make a more agressive timing curve for the car. Tunes on the steet than you can take it to the dyno.

 

he will do Af and timing, "tip in" and a few other trick to get whatever he can. A maf trans will do a little. But you can only really adjust the AF across the board with that and of course cant do timing and the other stuff. If you only need to fatten up the fuel curve at peak TQ he can do that. The MAFT can only fatten the entire rpm range.