Mods & Tuner

[pinky93]

Well,

 

I think I am done for a while......this is what I have done so far:

 

* Volant cold air kit

* Magnaflow cat-back

* E3 spark plugs

* Diablosport Predator tuner......just updated latest CROM last night and finally got rid of the DOD......hell yeah!

 

I can honestly say, this is a much different truck than it was stock. Although GM puts out a great truck, these mods only improved driveability, increased horsepower and increased fuel mileage.

 

I drive about 45-50 miles into Houston every day and this truck maintains my sanity...

 

Getting rid of the DOD has really improved part throttle response, especially when you change your mind at the last minute.

 

I have the 20" wheels and this poor girl would hardly spin em' before the mods. While the exhaust and intake surely helped, I just feel the tuner completed the package. Now it will spin the tires with ease and probably would until I lift, if it didn't have the damn TCM trying to reduce torque......

 

I think the only thing I would like to add is a Roll-n-Lock bed cover and an in dash GPS/Stereo and I should be all done.

 

Anyway, this thread was supposed to be about the tuner, so I had better get to it. Short of getting a custom tune, the Diablo is far superior to any others I have used. I have had a Diablosport before, on 2002 SS Camaro, but they have made many improvements. I ran a Max Energy Hypertech on a 6.0L 2500HD and it just didn't seem to have the power or even increase in fuel mileage (which the 6.0L desperately needed).

 

If we can ever get into the TCM, I think the stars will align and this will be a better world!!

[Nick The Great]

That TCM control is the best part!

[pinky93]

That TCM control is the best part!

 

I have very high hopes that this will come soon.......

[Stevens03]

I've been waiting for TCM control from diablo for 2 years now.. I wouldn't hold your breath. Thats why April I'm doing blackbear

[brims]

I've been waiting for TCM control from diablo for 2 years now.. I wouldn't hold your breath. Thats why April I'm doing blackbear

 

And if you read the DS forums, I think there have been people waiting even longer than 2 years.

[pinky93]

I've been waiting for TCM control from diablo for 2 years now.. I wouldn't hold your breath. Thats why April I'm doing blackbear

 

Yeah, I am figuring that I am not the first one who has had this hope, BUT...... I can say the Predator is a much improved piece from the last one that I had, so I have hope.

 

With the warranty issue, short of buying another PCM, I don't know what other option I had......

 

Keep us posted on your tune!

[jthebigjay]

SO how much did the mpg improve from stock with all the upgrades?? I'll looking to get a 99 tahoe, and might put it through the same kinda setup.

[pinky93]

SO how much did the mpg improve from stock with all the upgrades?? I'll looking to get a 99 tahoe, and might put it through the same kinda setup.

 

 

I would conservatively guess around 2 mpg improvement. Sometimes it really seems like more, but then I step off in it.....

 

Likely the fuel mileage will take a looooong time to pay for the mods, but I really enjoy the driveability improvement. The hesitant shifting, acceleration.....was really annoying. I am sure it would be even better with the TCM tune, but we will wait and see.

 

As it stands now, I am very pleased with each mod and VERY pleased how they are all working together. I have done the exhaust and cold air kit on the wifes' last 3 Suburban's (2001, 2003 & 2007) but did NOT do the tuner on them. Given my results here, I should have.