buzzkill_75

I'm with Gary. Read through this and everyone is an automatic. I would like to know benefits for the m6 group

Mike@DiabloSport

Improved throttle response, disabled CAGS, and increased power and torque throughout the RPM range would be the immediate benefits for a manual car

Mike's LS3

Exactly what I felt on my 08, Z51, NPP, manual coupe. The canned tunes also increase the fan duty cycle % to come on sooner for improve cooling in stop and go traffic. The ECM will start to pull timing at around 213*F. The D.S. tunes will help keep the engine coolant temps below that threshold, whereas the oem tune was pushing 220*F +.
I also had Diablew Custom Tune by Lew which added more throttle response and power, especially in 3rd gear! Through data logging, a custom tune really tailors an engines needs for maximum power. My only engine mod is a Halltech MF 103 air intake.

06MonteSS

............

mastergunner

Just to verify once I load a tune my warranty is done, correct? My understanding is that the GM PCMs have counters (personal experience on a Camaro) and once the dealer sees all of those tunes being put in your powertrain warranty is null and void.

GARYFINN

Mike@DiabloSport

absolutely not. If you had an issue with a Camaro, you used the wrong tuning device

Our tools leave no trace behind that a dealer could use to say you tuned the car (not that tuning a PCM should ever be grounds for a warranty issue).

Thanks

GARYFINN

So do you guarantee the Dealer can't see the Tune ???

Mike@DiabloSport

Best guarantee I can offer is the 1000s upon 1000s of predator/intune/trinity tuned GM customers we have all over the world, and the complete lack of anyone reporting issues with their dealership

Lancedc

I used a hand held tuner on my mustang and restored it to stock before taking it in for warranty service and nothing was ever said, so I assume there was nothing to see!

Kuhnrod

A lot of great info here. Thanks all for taking the time to share. Two quick questions:

1) Is there a computer based option that would be user-friendly in lieu of the handheld tuner option? (I'd like to record my track runs and log wheel speed / rpms / A/F / etc from burnout through traps. I would also like to be able to 'tweak' settings for humidity / temperature / etc.)

2) I would assume an in-person visit to a reputable qualified shop for a vehicle specific tune would be better than tuning from afar via sharing of computer files. Am I correct here? Is the inconvenience and cost trade-off worth it? (assumption being the in person approach is both more expensive and less convenient, as well as not convenient to adjust day to day thereafter.)

Ozzy12

Mike@DiabloSport

I have covered this topic extensively but I will touch on it briefly again here.

We will not show up in a CVN check. Fact. We offer The only flash tools which will not show in a CVN check whether it be e38, e67, e78, etc.

I would not sit here and try to tell you the dealer could not see it if we were showing up in the CVN check

Thanks

GARYFINN

We're not trying to disrespect you Mike but I don't want to void the last 5 1/2 years of my warranty

Mike@DiabloSport

once the stock tune has been restored there is absolutely nothing for them to see. Sure, if you go to the dealer with the tune installed and they really, really wanted to see what was there they could send the PCM to Michigan and have it read out to see the changes in the calibration data.
that scenario is highly unlikely, nor have I ever heard of it actually happening...

Thanks

Mike@DiabloSport

The calibration IDs never change with our tunes. Thats a common misconception with dealers it seems.

CVNs are different than calids. Not only do we not change them, our flashes do not even show up.

Thanks

Mike@DiabloSport

I'll guarantee there will never be an issue regarding CVNs. We cant do anything if you roll into the dealership with the tune loaded...not that they'll see it either way

Mike@DiabloSport

I dont understand what it is you are looking for. Anyone can read a pcm out, compare the read to a known stock read, and see what has been changed. We cant be responsible in this case, even though it has yet to ever be a problem. Dealerships do not even have the means to read a PCM out.

Mike@DiabloSport

Nothing we do will show up in said snapshots

2006c6keller

I have noticed this with many tuners on the Forum that it is guaranteed until it breaks. You have probably noticed that tuners guarantees are like a rash, it is always there, and even leave scars that never go away. They always "skirt" around the issue, similar to snake oil salesman, similar to my three requests for one answer. I kept getting "canned" answers, that doesn't help YOUR waranty that you have supposely guaranteed until it breaks!