my brother has talked to gm zone reps and there seems to be lots of trucks sitting waiting for engines. It seems gm tells you they won't warranty thinking you will just roll over and trade it in on a new one.

Superchips says right on the site that it adjusts shift points. Talking bout the GM version 2950. It fixes the 4th gear lag that so many people complain about. It also does not exceed the stock egt.

With the superchip, you can put your stock file back and there will be no record to void any warranty. -quote-

Aren't you out of warrenty already?

Negative ghostrider. GM upped the factory warranty on all 1st gen duramaxes due to known injector failure problem. Since their apparently not fixing or redesigning the injectors for that motor, they simply decided to keep replacing them a little longer but you're still hosed in the end I belive so far...

How pissed would you be to pay 750 retail each injector after the 200,000 expires??

Check out painless performance. They make one called the stryker 1 . I bought it from jegs performance 373.00.
Untraceable. It just plugs in, 5 minutes no tools,no gauges needed. 10 settings from fuel economy to 100hp. Works great for me. you can adjust it on the fly. I have 2000 f-250 7.3. Probably not as good as the high dollar ones but I think it works great. Makes it fun when you need a rush. Very noticeable when set at 100hp.

Where on earth did you hear those injectors cost $750ea? Most I've EVER seen them is about $200

Duramax and 7.3 are worlds different as far as tuner types/needs

www.gmfullsize.com

You could either get EFILive and gauges, or get a programmer that has the gauges built-in. The Edge Juice/Attitude is a great entry-level programmer and has an EGT probe, and all the other gauges you'd need. I had one in my LBZ Duramax.... here's a pic:

That is contrary to everything I've read/know about the duramax/allison combo.

The TCM takes a RPM, TPS, and load input from the engine, along with a wheel speed thats all the data it uses.. I'm not an expert, but I do like try and figure out how everything I work on works together, and thats what I remember about the dmax.

Since the TCM (transmission control module) is not part of the ECU (engine control module), any programmer that re-flashes the ECU through the OBD2 port can not have any effect on the TCM.

The only thing I can think of is they do something with a gear reference and loading to get the TCM to do what they want. So its either improperly tricked, or marketing, or I have no idea what I'm talking about. Go to the dieselplace.com before you spend money. They will save you a **** load.

had a sct tuner on my diesel, blew a head gasket, ran the truck back on stock for 200 miles, took it to the dealer and they said it had been tuned, so they voided warranty, The tuners can be detected, fact. cost me 13,000$ to fix, no more tuners here