I loaded the STU GT100 map from Cobb's website this past weekend. There is a local pump that has unleaded Sunoco 100 octane gas and am thinking of trying it later this week with this map.

Wondering if anyone here has tried this map and if so what were your thoughts on it? Was it worth the price of the 100 oct? Thanks for any input.

Well I called Cobb and they told me it isnt a performance map (I'm not sure why it isnt), just for use on SCCA STU autocross to run a little cleaner using the 100 oct...looks like the only way to get a race gas map is to buy one from PDX but I'd have to buy the pump map and add a race map for $50, so $200 for a race gas map that I'll only use a couple time...looks like I'm skipping playing with 100 oct...

I havent tried my 100Oct PDX map.. the 93 hi-boost is killer enough. Soon as this humidity calms down, ill give it a try.