HPT and warranty service
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Don't believe the hype people. Just had my car serviced fully under warranty. The cam seal was leaking like crazy, actually lost a fair amount of oil in 1 trip home from work. When I pulled into my driveway I had what sounded like the roller follower noise I heard on someone else's car. Did a quick Comp test and everything looked kosher, time to swap parts and call the dealer.
So I threw the stock DP and CP back on the car, did a write entire with my stock file and pressed the OH SO GREAT OnStar button for them to come pick it up. When my dealer got it they contacted GM to approve the repairs, GM wanted the VCM programming sent to them to verify it's OEM....so they sent it and GM approved everything claiming the VCM was untouched. Should have my car back early next week
Swapping stock parts = 1 1/2 hrs of time
Flashing stock programming back = 5 minutes
Now offering stealth tunes for you too
LMAO!
So I threw the stock DP and CP back on the car, did a write entire with my stock file and pressed the OH SO GREAT OnStar button for them to come pick it up. When my dealer got it they contacted GM to approve the repairs, GM wanted the VCM programming sent to them to verify it's OEM....so they sent it and GM approved everything claiming the VCM was untouched. Should have my car back early next week

Swapping stock parts = 1 1/2 hrs of time
Flashing stock programming back = 5 minutes
Now offering stealth tunes for you too
Don't believe the hype people. Just had my car serviced fully under warranty. The cam seal was leaking like crazy, actually lost a fair amount of oil in 1 trip home from work. When I pulled into my driveway I had what sounded like the roller follower noise I heard on someone else's car. Did a quick Comp test and everything looked kosher, time to swap parts and call the dealer.
So I threw the stock DP and CP back on the car, did a write entire with my stock file and pressed the OH SO GREAT OnStar button for them to come pick it up. When my dealer got it they contacted GM to approve the repairs, GM wanted the VCM programming sent to them to verify it's OEM....so they sent it and GM approved everything claiming the VCM was untouched. Should have my car back early next week
Swapping stock parts = 1 1/2 hrs of time
Flashing stock programming back = 5 minutes
Now offering stealth tunes for you too
LMAO!
So I threw the stock DP and CP back on the car, did a write entire with my stock file and pressed the OH SO GREAT OnStar button for them to come pick it up. When my dealer got it they contacted GM to approve the repairs, GM wanted the VCM programming sent to them to verify it's OEM....so they sent it and GM approved everything claiming the VCM was untouched. Should have my car back early next week

Swapping stock parts = 1 1/2 hrs of time
Flashing stock programming back = 5 minutes
Now offering stealth tunes for you too
Thread Starter
Former Vendor
iTrader: (6)
Joined: 05-01-09
Posts: 5,973
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From: NEPA/North NJ
Anyone that has gotten a tune from me, I save their stock file. At any time I can flash them back to stock, they just need to meet up with me. Im sure Term offers similar service, or any other tuner for that matter.
And if you own HPT and get tuned by someone via email, just save your stock file and your tuned file if you need to swap them. Instead of doing write cal only to go back to stock, do a write entire with the stock file and that seems to have worked! It wasn't like the dealer just didn't see it, it was sent to GM.
And if you own HPT and get tuned by someone via email, just save your stock file and your tuned file if you need to swap them. Instead of doing write cal only to go back to stock, do a write entire with the stock file and that seems to have worked! It wasn't like the dealer just didn't see it, it was sent to GM.
Anyone that has gotten a tune from me, I save their stock file. At any time I can flash them back to stock, they just need to meet up with me. Im sure Term offers similar service, or any other tuner for that matter.
And if you own HPT and get tuned by someone via email, just save your stock file and your tuned file if you need to swap them. Instead of doing write cal only to go back to stock, do a write entire with the stock file and that seems to have worked! It wasn't like the dealer just didn't see it, it was sent to GM.
And if you own HPT and get tuned by someone via email, just save your stock file and your tuned file if you need to swap them. Instead of doing write cal only to go back to stock, do a write entire with the stock file and that seems to have worked! It wasn't like the dealer just didn't see it, it was sent to GM.
The nice thing with Trifecta, for me at least, is when you purchase his cable any updates or tune adjustments I need he takes care of for free, and I can datalog everything easily by myself.
Thread Starter
Former Vendor
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From: NEPA/North NJ
At Tofu - I mean, if you have it already, doesn't hurt to do it that way and be super safe. I did not tho, and I seem to have made it stealth while using HPT.
IF you had a good local tuner, they could offer the same service. There are some dead spots out there tho from looking at the tuner locations thread.
HPT isn't for everyone, which is why there is a market for TF and other tuners. To each his own! Not trying to single anyone out or knock any other tuner or tunes, but seems we can achieve stealth with HPT now too. Just need the damn WGDC and DIFP tables to even the playing field....
See that's the thing. You need 1 of 2 things, 1: to have a good tuner locally, or 2:have HPT yourself to be able to work with someone like yourself. Unfortunately I have neither of those. I don't completely trust the local tune shop, plus I have seen his dyno numbers he did on an 08/ss and it wasn't anything like you, term, or even Trifecta is making with just a few bolt-ons.
The nice thing with Trifecta, for me at least, is when you purchase his cable any updates or tune adjustments I need he takes care of for free, and I can datalog everything easily by myself.
The nice thing with Trifecta, for me at least, is when you purchase his cable any updates or tune adjustments I need he takes care of for free, and I can datalog everything easily by myself.
HPT isn't for everyone, which is why there is a market for TF and other tuners. To each his own! Not trying to single anyone out or knock any other tuner or tunes, but seems we can achieve stealth with HPT now too. Just need the damn WGDC and DIFP tables to even the playing field....
Last edited by BYT*SS*TURBO; Jan 8, 2010 at 11:39 AM. Reason: Automerged Doublepost
Thread Starter
Former Vendor
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From: NEPA/North NJ
It took me very lil time, why chance them questioning anything?? If the car shows up appearing stock, less chance for them to dig around and find a reason to not warranty anything.
Don't believe the hype people. Just had my car serviced fully under warranty. The cam seal was leaking like crazy, actually lost a fair amount of oil in 1 trip home from work. When I pulled into my driveway I had what sounded like the roller follower noise I heard on someone else's car. Did a quick Comp test and everything looked kosher, time to swap parts and call the dealer.
So I threw the stock DP and CP back on the car, did a write entire with my stock file and pressed the OH SO GREAT OnStar button for them to come pick it up. When my dealer got it they contacted GM to approve the repairs, GM wanted the VCM programming sent to them to verify it's OEM....so they sent it and GM approved everything claiming the VCM was untouched. Should have my car back early next week
Swapping stock parts = 1 1/2 hrs of time
Flashing stock programming back = 5 minutes
Now offering stealth tunes for you too
LMAO!
So I threw the stock DP and CP back on the car, did a write entire with my stock file and pressed the OH SO GREAT OnStar button for them to come pick it up. When my dealer got it they contacted GM to approve the repairs, GM wanted the VCM programming sent to them to verify it's OEM....so they sent it and GM approved everything claiming the VCM was untouched. Should have my car back early next week

Swapping stock parts = 1 1/2 hrs of time
Flashing stock programming back = 5 minutes
Now offering stealth tunes for you too
LOL o well , takes 2 minutes to swap the stocker 5 minutes for a write entire LOL
Thats just too funny , I laugh at all the others
Last edited by PrincessTurbo; Jan 8, 2010 at 01:33 PM. Reason: Automerged Doublepost
Thread Starter
Former Vendor
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From: NEPA/North NJ
I made sure my maintenance log was filled out, oil change receipts are there, dated and mileage marked etc... I made sure I was totally covered, so why not take the couple mins for the 2 mods I have 
Sorry Princess, it doesnt hurt to have it!!! Like I said above, better VERY safe then sorry!

Sorry Princess, it doesnt hurt to have it!!! Like I said above, better VERY safe then sorry!
I see what your saying, it's just there is no way a DP or CP's could cause an oil leak, put I know that dealerships can be ******. Still very suprised they actually checked your VCM though is that common?
lol, good news, I had a trans replaced and a turbo coldside line replaced when i was HP Tuned lol. I believe that was mine with the roller noise, but i havent had any issues with Oil leaking, that sucks to hear man. Let me know how it goes.
I called the dealer to have my Downpipe replaced under warranty. He told me on the phone that I should have a CEL on and not to erase the code. Plus they were going to check for the CVN number that comes in the PCM and if it didnt match what the car was registered with, they were going to void my warranty and I would have to pay for the diagnostic time (90bucks).
Needless to say, it never made it to the dealer. Borrowed a stock DP and had mine redone at a muffler shop. Catless stock DP FTW...
Needless to say, it never made it to the dealer. Borrowed a stock DP and had mine redone at a muffler shop. Catless stock DP FTW...
Isn't there a law against voiding a warranty without being able to prove beyond a reasonable doubt that the modification was the sole cause of the issues on your car, if so, they by law cannot void your warranty because you have it flashed. That is just a law suit waiting to happen.
Isn't there a law against voiding a warranty without being able to prove beyond a reasonable doubt that the modification was the sole cause of the issues on your car, if so, they by law cannot void your warranty because you have it flashed. That is just a law suit waiting to happen.
GM can and does void powertrain warranties for aftermarket tunes. Their side is that there is no way to tell how long its been there, or how aggressive it is, and since it can alter federal emissions standards as well cause the system to exceed its design limits they are liable for it since they only warrant a vehicle operating to factory specs. Theyve done it a lot already, and already won the few lawsuits that ensued. I posted up a copy of the email the delaer gets when GM voids your warranty a while back.
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