03FASTGT

Just installed it and it did not ask me what octane level I was running or wanted for the tune. It just said ``installed performance tune``.

Im running 89 Octane

defconfire

I think it gives you a standard 93 tune. but if you dont have detonation/pinging/ticking than awesome your good

black35th

Well where did you order it from? What did you specify when you ordered it?

03FASTGT

I bought it from a local performance shop and I asekd him if it had different levels, he said yes... Hmmm

ying.yang.gt

You can modify the tune if your running lower than 93oct. You can mod the timing if you're getting any pinging. I 89oct an have no issues with the default tune.

20GT02

http://www.diablosport.com/index.php...lay&pid=55

The Predator comes with only one tune which is the performance 93 octane tune. If you check out the forums on diablo's page, you can get a "how-to" on lowering your spark timing in order to compensate for running lower octane levels. They do however advise that if you are running their unmodified performance tune, 93 octane is REQUIRED due to the fact that detonation is very likely in cars running less than this. Also, what kinda plugs are you running? Id recommend taking out thos factory POS platinums and running a set of Ford Motorcraft AGSF-22c (new part number: SP-505) The copper plugs are better conductors and these are one heat range colder than factory specs and should give you better results when modifying the fuel trim and spark timing.