Couldn't really tell any difference on 87 octane but it did seem to come alive a bit on 93. Throttle response is definitely quicker though. I'd probably buy again just because I've heard bad things about the more expensive units on the market. Don't really think it helps gas mileage either. I do however have a CAI on the way & put exhaust on last month so we'll see how all the mods work together.
The Diablo Trinity T-1000 is good I guess for the options is has. As far as performance and horsepower gains, I can't really tell a difference to be Honest. To me it's not worth the price and much it cost. I'm not sure if I would recommend this product to another person, because I wouldn't want them to waste their money, and I get blamed for it.