Stealth & Edge Duramax Tuning Modules

[44sixpack]

The days of screwing with diesels are over, and what's the point. anyone messing with them before warranty is up is crazy.

 

[AXE]

Why? I've never had warranty issues. I've hardly had any issues, some trucks driven 10+ years and 150k.

 

[AXE]

Just a heads up, I installed the agg module and it put my truck in limp mode, removed cleared code drove truck without module and it was fine. Tried again 20 miles same thing, throws p0191 code. They tried to help and sent another module and same issue. Probably didn't do enough testing on the 24. I have nothing bad to say about the company and they tried to make it right. I sent the module back for a refund. Truck did produce more power for sure but didn't feel like 90hp at all.

Yeah, unless youre posting testing data and dyno results, you aint getting my business.

 

[Hpmaniac]

Update, i also bought a stealth module once I found out agg module had issue and it also threw a code, it was a fuel rail pressure code. Called company and the guy was super cool and knew what to do, I sent in the module, they sent it back and the truck running great with a large power gain and zero codes. Stealth is a stand up company!! Dude also said he could tweak it for even more power. Truck runs very strong. Also no refund from the place I bought agg module and no response to my email. They don't want to play that game with me.

 

[Hpmaniac]

No hard data before and after stealth but on my drive home there is a long pull up a hill I use as a test, when truck was stock I was at 79 mph at top of hill and with the stealth module I am at 84. At 35 mph a full throttle down shift on dry pavement the truck spins, it has 37's also.

 

[AXE]

No hard data before and after stealth but on my drive home there is a long pull up a hill I use as a test, when truck was stock I was at 79 mph at top of hill and with the stealth module I am at 84. At 35 mph a full throttle down shift on dry pavement the truck spins, it has 37's also.

Hook up some gear and let us know if it still works.

 

[Hpmaniac]

Hook up some gear and let us know if it still works.

Going to tow my Kubota 35 in 2 weeks about 400 miles, I'll know then for sure. I will click it down to middle setting for that.

 

[Hpmaniac]

So today just by chance I was driving down the highway and pulled up beside my buddy who has a 2024 gmc at4x or whatever that truck is in the bison zr2 package and his truck is bone stock. On a 50 to 80 roll I had him by at least 3 or 4 trucks at 80. My truck has the s&b air box and the stealth module. The difference was insane on that pull. One thing I noticed was it took about 30 miles of driving for the Alison trans to figure out shift points with the added power. But it adapted and is shifting well. Man I can't wait to get hp tuner support when it comes out. These things are going to make a ton of power!

 

[securityguy]

So today just by chance I was driving down the highway and pulled up beside my buddy who has a 2024 gmc at4x or whatever that truck is in the bison zr2 package and his truck is bone stock. On a 50 to 80 roll I had him by at least 3 or 4 trucks at 80. My truck has the s&b air box and the stealth module. The difference was insane on that pull. One thing I noticed was it took about 30 miles of driving for the Alison trans to figure out shift points with the added power. But it adapted and is shifting well. Man I can't wait to get hp tuner support when it comes out. These things are going to make a ton of power!

That runs around $800 correct?

 

[Hpmaniac]

That runs around $800 correct?

Yes and worth every cent.

 

[Hpmaniac]

Update, did some heavy towing with the stealth module with zero issues. Agg set me another module to test, noticed right away the stealth module has much more power and way more throttle response. So far no check engine light with agg but I'm going to take it off, not even close to the same power the stealth produces. I honestly thought power would be the same but it's not even close. Stealth for the win. On average I have gained about 1.5 or so mpg with the stealth module.

 

[AXE]

Update, did some heavy towing with the stealth module with zero issues. Agg set me another module to test, noticed right away the stealth module has much more power and way more throttle response. So far no check engine light with agg but I'm going to take it off, not even close to the same power the stealth produces. I honestly thought power would be the same but it's not even close. Stealth for the win. On average I have gained about 1.5 or so mpg with the stealth module.

I might just get one for the time being!

Seems like for what it is, it's worth $400-500. I think price will drop when ECM/TCM tuning is available.

 

[MrScottly]

If you put more fuel in it, you'll get more unburned fuel (soot) coming out of it, unless you increase the air going in it. If you get more soot, you'll need regens more frequently, unless you remove the DPF system and a tuner shuts off the related sensors.

Why do I say this? Any company that advertises a tuner that is emissions compliant isn't lying...It's what they don't tell you that you need to pay attention to. Again, more fuel = more regens. If you're not getting it hot enough by running it long enough and fast enough, you'll eventually have an active regen. Active regens take raw fuel to achieve needed temps. So, more active regens = great sacrifice in fuel mileage.

It's also no secret that the DPF has an expected lifespan before regens won't clear it...That lifespan shortens with more soot, more frequently. Just keep that in mind with "emission compliant" tuners.

Or go buy one of them government trucks that are deleted from the factory.