I just wanted to start a thread for people who have gotten a custom tune from Lew. Here, you can post your tuning experience with lew and your overall experience. Hopefully this will help those thinking about buying a custom tune from Lew.
I will start...
I currently have a diabLEW tune in my 2007 5.3L Chevy Silverado. The tune is not yet completely dialed in 100% and already.... the 87 tune out performs the canned Diablo (91 octane +) tune. I can't wait to feel the 91 DiabLEW!! the truck shifts firmer and faster, power gains are very noticeable on top of the canned diablo tunes, and the overall driving experience is a lot funner and FASTER! On top of all this, the truck gets better gas milliage!
Now, when i get on the gas the truck in the lower RPM range is equivalent or slightly faster than the canned diablo. However, when the truck gets up into the mid to higher rpm range the thing has a power-band like pull. The only way i can describe it is... its like a 2-stroke or like a turbo spooling. In these higher ranges there is a BIG difference, not to mention the firmer, faster shift between each gear.
As fo gas milliage... I drive 6 hours once a month. It usually takes about 1-1/4 tank(s) for this drive. This time... It only took 3/4 of a tank! I know some of you will think that my driving style was probably different on this trip. But believe me.... I was not easy on the pedal whatsoever, Im a very aggressive driver. In actuality, I probably went WOT a lot more while speeding up and taking off just because the feel of getting set back in the seat is still new and exciting.
When I refer to posting your "tuning experience," I chose the word experience for a reason. Lew is a kind, funny, down to earth man that takes the time to talk to you and do things right- he doesn't take your money and then do what hes got to do. The man actually cares about the services he offers. There is a general guideline of the tuning process that Lew describes on his website. However, Lew doesn't limit your custom tune to 2 or 3 revisions and he is done. Nope, he will revise your tune until it is as close to perfection as possible. We are currently on my fourth revision. Being a perfectionist, i would much rather have multiple revisions to achieve perfection than a limited number of tries to settle with a "good" tune. You definitely get your moneys worth with a custom tune from Lew.
If revising your tune until it is perfect, no matter the number of hours it takes isnt enough... Lew also analyzes new logs and makes any adjustments that the tune needs if you happen to add another modification.
In a nut shell, that is my experience with my Custom Diablew tune thus far. Post yours!