Im looking to buy a TST R49 from a buddy, but his truck is an 04.5, whats the differance in them??...can i use it on my early 04??..i can get it for a really good deal!!

 

The harnesses are different. You can get the correct harness from TST without having to buy a whole module and run your buddies.

 

What harness is differant??

 

The harness changed in 06+. 06's and up use a different connections instead of the individual injector harnesses like the 03 to 05's do. The TST will work from 03 to 05. Buy it and enjoy!

 

after coming from a banks setup the TST ROCKS!

 

Well, with that said, I just bought a used TST off of ebay. The description said 04.5-05, but I was under the belief that it would work on 03-05. Called TST and they said the box and programming is the same, the only thing that changed was the harness. The harness pictured in the auction looks like mine (injector plugs are the same).
Oddly enough, after I bought the box, I asked the owner why he sold it. He said that he bought it with the understanding that it would work on his 03. He said it didnt. So he is reselling it. Yikes.. did I just waste my money? Do you think TST can do some upgrading. I don't have the serial number yet or mnf date.
Just picking the TST gurus heads..

 

The folks at TST will help you out! Their a great group of people! "DenverDodge04" welcome to the real world of power...

 

ok let me clear this up for you guys, the box will work with 03-04 04.5-05 and then for 06-07 all because they went to elctronic waste gate in 04.5 and in 06 they went to differant injector plugs, which is why the harness is differant for three differant years, you can get any harness for 90.00 from tst all the boxes are the same but the harness have three differant models. so 5 point the "harness" will not work for your 03 you will have to get a differant harness for 90.00, hope this helps, denverdodge

 

But TST shows the same harness for 03-05? Only 06 and up have a different harness right? So if this box was supposedly for 04.5-05, it should have the same harness as the 03? I am confused.

 

my install instuction shows 2 differant pictures for 03-05 one just has an extra couple wires to hook up to the electronic wastegate, also look at www.tstproducts.com they have three differant models in the drop down box for the CR.

 

Bump.. anybody else tried to install a 04.5-05 tst on on 03? Yeah, I saw the drop down box on tst's website. I called and spoke to a gal at tst and she said it should work, but I may have to install the boost elbow. Is that one of the differences between the part #'s perhaps? Maybe the 03-04 comes with the brass elbow? I just hope I didn't waste my money.
Are the TSTs pretty reliable? While doing a search, I saw a lot of threads titled "TST problems".. it's got me kinda worried!

 

If you are still running your stock 03 turbo, I suggest you leave the stock boost elbow in place. The gain of a modified boost elbow with the stock turbo and the TST(especially a twins program) will be minimal, and the turbo will be trashed in a matter of hours.

TST is GREAT! No worries.

 

Yeah, that's what I was thinking. Something about duration that drive boost big time. I've only ran a boost fitting once on my truck, on the VA 3.2 to try and help reduce ex temps. The boost, however, would quickly spike to 45-50 lbs! Yikes! Took the elbow back off (and sold the 3.2).

We'll see what happens.