From what I've seen personally on the dyno, trifecta barely beats the GM tune in HP. Not to mention it takes a lot more boost to get there.

You feel the extra torque down low and it feel faster but up high whrre it matters it's makes similar power. Any way that's what I've seen.

 

GM has put guys who were stock threw hell because they blew a motor .....stock. GM will claim abuse and will do just about anything not to replace a motor ... GM stage1 or not . Hell when they see that stage 1 is on the car they will consider you a full blown race driver lol.

 

She makes decent power if it is cool enough ...
I kept up with a 07 GT2 once, but then he started to walk me in the afternoon when it got really hot out. I knew something was wrong so I started paying more attention to her sounds.
That was when I noticed the knocking and took her to the dyno. (first to the dealer who told me to get octane booster!!)
With the hood open we heard it loud and clear.

Our cars have better gearing than the MS3, if you short shift a little and use the TQ I can see you beating on a 298WHP MS3. Take him out to a road-course and you will destroy him for sure.

 

GM denied my buddy his warranty because they said it started at the time of build not the time of purchase. (He paid additional $ to extend it) He has a regular old cobalt 2 door, no turbo, no tune, just a daily driver. i told him this was BS and to call Customer Service....even the dealership said it was BS. Bottom line is they wouldn't pay the 800 bucks to fix under warranty. He will not be buying GM again and neither will I after my last experience at the dealership; they said my muffler delete caused my MAP to fail and that the rear brakes were meant to work that way (deep grooves and grinding) What a bunch of jackasses! Mustang 5.0 is in the future I think.

 

I know someone with a GMS1 that went to the same track i go to, he was trapping 105-107mph, im trapping 109-111mph with the trifecta 22 psi.

With the downpipe and the new tune you should notice a good difference

 

really? Here's a couple graphs to check out. Same dyno, same day, same conditions, same smoothing yet the Tirfecta tune (24psi) makes 34 more whp, and 36 more wtrq than the GMS1 (spiking 24-25psi, holding 21-22psi). The trifecta tune also has a smoother and stronger powerband that holds solid hp all the way through the top end (6500rpm redline), and carries the power 1000rpm further than the GMS1. Torque inevitably drops off up top for both unfortunately, but that's impossible to avoid with our tiny stock turbos.


Trifecta 295whp, 316wtrq


GMS1 261whp, 280wtrq


and yes I know the numbers seem low, however this was a mustang dyno known to read a little on the low side. Even a BYT tuned SS/TC running 25psi that was there that day with similar mods put down 281whp, 345wtrq (torque spiked really high but didn't hold very well for some reason)

Just some food for thought on your comment

 

The question is though, is it worth it to void the warranty?

How long has everyone been tuned with no problems?

 

Venom09,

yesterday i did a 3rd gear pull versus a member here with GMS1, both of us just have the tune, no bolt-ons.
I took it on video, if it can give you an idea of the difference...

http://www.youtube.com/watch?v=jW_Wiy_cPNI

 

Cannibal!!! Yanked him.

 

Your car pulls pretty hard for only 22 psi.

 

Honestly, the logs and dyno sheets that I've seen from the GMS1 it really makes me a tad nervous (although I'm sure there will be guys commenting on the contrary). I'd almost be tempted to say that you're actually likely to incur more issues with the GMS1 as compared to a propper custom HPT or Trifecta tune. If you're really worried about your warranty then (if you go with HPT) have your tuner do a full write of your stock tune file so if you do ever need any warranty work done you now have the option of having the tuner load your stock file prior to you heading to the dealer. Most tuners generally won't charge you for this sort of thing, unless they're a real piece of **** that is. As far as Trifecta goes, the tune is supposed to be "stealth" anyways, but just to be on the safe side you do have the option of flashing your stock tune file back as well just as long as you purchase the openport cable from Vince instead of going the GTTuner route. Here again you can flash your stock tune prior to any work being done, and then flash back to your performance tune once you get the car back.

Again, just a couple of options to consider

 

Yeah i am pretty happy with it! cant wait to know how you like yours

how much psi you will run?

 

Update.

Sorry for the delay everyone, I had to take care of some stuff first.

The DP is on (still waiting for the off road section) and it sounds good. It is a little shorter than my stock DP so I had to realign the catback some. Not a big deal.

As for the Tune... It is at 22psi and conservative fuel and timing. We are still working on it for the shorter (read slower tracks). I am going to try a 20 psi tune next.

So far any of the (4) tunes I got from Vince was much better(safer) than the GMS1.

 

I recently yesterday rode with a guy, who had almost the same similiar bolt-on's(catless dp and charge pipe) except he is a 4 door sedan with a Trifecta tune, not a GMS1. Went for a ride and I notice the huge difference between Trifecta and GMS1. He was spiking at 25 psi, but was holding at 22psi with the tires spinning a little, but it was an awesome experience to notice the difference between the two tunes. It pulled a lot harder and maintained it's power in midrange band. As for the video I saw that was almost how my race ended up like with the Caliber SRT4 tune vs. GMS1 on 3rd pull. I'm now interested in the Trifecta tune and have the guy tune my ride when I get the chance.

 

Get him to join here so we can talk about his car more.

Spiking 25? How long has he been doing that? Has he had any *problems* with car so far?
I'm really interested in this and I'm running a *BOOST POLL* right now. As you can see, so far there are a significant # problems with higher boost levels.

 

another thing to note if your worried about warranty issues, buy a second pcm and use it to tune. keep the stock pcm when you need warranty work.

im still on the ropes for deciding to get GMS1 or just get trifecta or hp tuners right off the bat. im thinking of a second pcm with either trifecta or hp tuners at 22 psi.

 

I already decided to get the Trifecta tune on my whip with the GMS1 when I get the chance. His car had zero issues as far as I know.

 

anybody know any benefits to having trifecta on top of gms1 as oppose to just trifecta?

 

zero benefits... unless your wallet needs a good weight reduction..

Vince rescales the stock sensor outputs to work with the higher boost levels so the 3bar maps aren't really needed.

 

I think some will argue that. The better sensors give you more refined control over everything

 

nope, not with trifecta. If you meant with HPTuner, then yes I would very much agree with you.