Quote direct from their website


\* U7777(serial) or U7778(usb) PC interface kit
Should be purchased due to calibration updates from the factory!

 

installed my diablo (87 octane tune for now). Had to first update the cars calibration by downloading that to the handheld unit.

truck feels like a new truck--no more retard at shift--now a strong shift each time. Can get rubber from a dig now whereas before just "boggy"--

truck now feels like 390hp/407 TQ. Good product.....

 

I filled up my truck with 93 gas first. I then installed the Diablo canned 87 tune, and all I can say is wow. It really woke up my truck. It runs better, shifts better, and is faster. I ran it this way for a day and then updated it to the 93 canned tune. I have to say the difference is slight between the 87 and 93 tunes. Has anybody else noticed this?

 

On the dyno, the 93 octane tune is only 10hp/13tq more than the 87 tune so its not much of a diff. But the gains from stock to 87 is 25hp and 32tq. Both tunes are great.

 

That's almost a 30% increase over the 87 tune so it should be enough to feel a difference. But I do agree that on a 390+ HP truck it's not a huge increase.

I think the goal is to increase power across the RPM range and not just focus on peak numbers. An extra 50 HP at 3000 RPM would be a lot more noticable than 25 at 5500. That's an example and not representation of what the Diablo will give.

 

The power the Diablo tune gives you is great and now that I have the TSS custom tune it's even better.

These tuners should be flying of the shelves.

Best Mod anyone can do at this point if your looking for power.

 

I'd like to see a dyno of the TSS tune and/or some 1/4 mile times compared to stock.

 

I have something better, real heads up racing. My buddy has a trailblazer SS with Intake and exhaust) and he used to pull about 5-7 trucks on me from a 25 roll to 110 when I was 100% stock. Now with just the tune (bone stock everything else) he only pulls 1-2 lengths and thats on top end (those SS's only weigh 4800lb). Through the low to mid range we are door to door. We are both pretty good drivers and we have even swapped trucks and had the same outcome. Once an intake and exhaust are put on the hemi with a nice custom tune, it should be lights out. (All this testing is on a private road)

 

Drap, can you put your signature with your specs, reg cab or crew or club, thanks for the real world post.

 

Drap any plans on going to the countyline drag stip soon?