So, I have a match race tonight. My vert vs. a friends coupe at the 1/8th mile track. I had to swap my CAI and tune to the vert and the custom tune went away. No problem - I have it stored on my computer - except the Predator won't take the tune. It tells me the download is successful and the tuner responds like it's loading but when I plug it in to the car there is no tune. The baud rates match and I've probably done this 30 times before. Did it have to go south on the BIG day? I ran him 2 weeks ago and he beat me 2 out of 3 with my stock intake and a performance tune. I was going to give him a run tonight with the CAI. His car has a CAI and an X2Cal tune. So I put the Diablosport 91 octane tune on the car and modified the shift points and richened it up a bit. I'm waiting for tech support to respond. I know the CEL will come on tonight - do you think it will hurt to make a couple of passes running a bit lean? Oh - and OSIRIS - if you're out there - don't read this :laughlitt I wouldn't want you to think I was running at a disadvantage.