Jump to content

2014+ Engine & Transmission Tuning

pendragon

By pendragon
in Engines & Drivetrain

 Share

Recommended Posts

CorvetteOJ Enthusiast

CorvetteOJ

Posted
Posted

Thanks, it was a great trip and well worth it. The ballpark cost is $200 to 250. They don't dyno trucks because of the danger of the drive shaft coming apart and messing up the truck and/or his dyno. He does have a super nice dyno. They only street tune trucks and they do a lot of late model GM trucks. They have street tuned an '06 Hummer H3 and an '11 Silverado 5.3 with a 3.08, for me, during the last five years. Everyone of them have been unbelievable results, especially the Hummer.

  • Replies 1.1k
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

CorvetteOJ
CorvetteOJ

I have received numerous PMs asking about my tune, so many in different threads, I don't believe I could find them all, so I thought I would just initiate a seperate thread to address it. This may be

tim s
tim s

I just had Black Bear tune done and wow my truck at full throttle shifts into 4th at 100 mph. Transmission shifts so much better. Throttle response is fantastic. Best tune I have ever had done.

iCryWheniGoPoop
iCryWheniGoPoop

Ok, there seems to be a little confusion and a lot of misinformation passed around the internet that WILL eventually bite one of us in the butt when they go in for a warranty after they get their truc

Posted Images

nomadicdogg Enthusiast

nomadicdogg

Posted
Posted

what CAI and exhaust are you running for your 6.2 I cannot find any company making those specific to the 6.2 yet.

RyanbabZ71 Senior Enthusiast

RyanbabZ71

Posted
Posted

what CAI and exhaust are you running for your 6.2 I cannot find any company making those specific to the 6.2 yet.

CAI will be coming out with theirs in the near future.

 

 

Ryan

CorvetteOJ Enthusiast

CorvetteOJ

Posted
Posted

what CAI and exhaust are you running for your 6.2 I cannot find any company making those specific to the 6.2 yet.

 

The CAI I'm running is the Airaid designed for the 5.3. One of the other guys on here, TJay, did it first and then I followed his lead. The system works unbelieveably well, looks great, fits like a glove. Airaid says they don't plan to build a specific model for the 6.2 since this one serves the same purpose. It also has a huge snorkel coming out of the bottom of the air box that hangs down behind the grill, and man does it suck some air. It is definitely the best CAI system I have ever owned, and I have had 15 or 20 or them in the last 30 years. You are right, you can't find anything specifically marketed for the 6.2 yet.

 

As for the exhaust system. Mine is a custom cat back installed by a performance exhaust shop here in town. (Montgomery, Alabama). We simply cut the factory system off just behind the third cat and through it away. Then installed a 22" Magnaflow, single in, dual out, and fabricated two pipes to come straight out the back. The last 22" of the pipes are 4" chrome. Hope this helps. For what it's worth, I wouldn't change a thing on either system. They both far exceeded my expectations. Good luck with yours.

  • Like 2
nomadicdogg Enthusiast

nomadicdogg

Posted
Posted

 

The CAI I'm running is the Airaid designed for the 5.3. One of the other guys on here, TJay, did it first and then I followed his lead. The system works unbelieveably well, looks great, fits like a glove. Airaid says they don't plan to build a specific model for the 6.2 since this one serves the same purpose. It also has a huge snorkel coming out of the bottom of the air box that hangs down behind the grill, and man does it suck some air. It is definitely the best CAI system I have ever owned, and I have had 15 or 20 or them in the last 30 years. You are right, you can't find anything specifically marketed for the 6.2 yet.

 

As for the exhaust system. Mine is a custom cat back installed by a performance exhaust shop here in town. (Montgomery, Alabama). We simply cut the factory system off just behind the third cat and through it away. Then installed a 22" Magnaflow, single in, dual out, and fabricated two pipes to come straight out the back. The last 22" of the pipes are 4" chrome. Hope this helps. For what it's worth, I wouldn't change a thing on either system. They both far exceeded my expectations. Good luck with yours.

I have a roto fab cai on my camaro and a K and N on my truck now. I love the roto fab, the k and n is kind of meh.. so to say. I dont know much about airraid so will need to do some research I guess. I do know I didnt really care for their closed box design on the camaro vs the open filter style of the roto fab...

 

As for the exhaust.. I also have a local pro shop... Im going to PM you for some more info on that :D

EastCoast HD Enthusiast

EastCoast HD

Posted
Posted

Thanks for the update CorvetteOJ.

 

I had a PCM For Less tune on my 2003 2500HD. Night and day difference!

 

Looking forward to future updates!

Mutau95 Enthusiast

Mutau95

Posted
Posted

CorvetteOJ can you post a clip of your exhaust I have been trying to decide between the 22 and 18 inch magnaflow muffler. Also was wondering if that shop will reset to oem specs if you need to take it to the dealer? I live about 2 hours from Mooresville so it wouldn't be a bad drive to have a tune done there.

  • Like 1
nomadicdogg Enthusiast

nomadicdogg

Posted
Posted

CorvetteOJ can you post a clip of your exhaust I have been trying to decide between the 22 and 18 inch magnaflow muffler. Also was wondering if that shop will reset to oem specs if you need to take it to the dealer? I live about 2 hours from Mooresville so it wouldn't be a bad drive to have a tune done there.

Id love to hear it to... Mutau95 if you go with one or the other keep me posted please

CorvetteOJ Enthusiast

CorvetteOJ

Posted
Posted

CorvetteOJ can you post a clip of your exhaust I have been trying to decide between the 22 and 18 inch magnaflow muffler. Also was wondering if that shop will reset to oem specs if you need to take it to the dealer? I live about 2 hours from Mooresville so it wouldn't be a bad drive to have a tune done there.

CorvetteOJ can you post a clip of your exhaust I have been trying to decide between the 22 and 18 inch magnaflow muffler. Also was wondering if that shop will reset to oem specs if you need to take it to the dealer? I live about 2 hours from Mooresville so it wouldn't be a bad drive to have a tune done there.

I'm sorry, can't post a clip due to my being technically challenged. Yes, they will reset it any time you want. As for the difference between the 18 & 22" magnaflow, I can't say, I have the 22" but have wondered if I made the right decision. Mine is pretty nice but my exhaust guy tells me the18 would give me more rumble. Good luck with your decision.

TJay74 Senior Enthusiast

TJay74

Posted
Posted

Alvin knows his stuff, he tuned my Trailblazer SS for me via the mail order tune back in the day. I may have to inquire about it again in the future as I have HP tuners myself. I would only be out the $100 for the license and his fee as well.

B&J Aviation Enthusiast

B&J Aviation

Posted
Posted

Thanks OJ. I live 5 miles from them and did not know about them. I have an appt and looking forward to results.

iCryWheniGoPoop Enthusiast

iCryWheniGoPoop

Posted
Posted

The "Dealer" CANNOT see the changes BUT... On the 2014's which are now on the global platform like the Vette and Duramax have been on since 2010, they can now tell if the ECM has been flashed by way of a little hidden flash counter built into the system. This means... Say the dealer has done a couple flashes so far like on the Recall and maybe another TSB, this would have the counter set to a 3 (factory flash+recall flash + TSB flash). You come in because you have a transmission failure or dead miss in cylinder 4, dealer will more than likely be instructed to pull an image and history on ECU and send it in so that engineering can see what may have caused it, BAM! There sits a flash counter showing a count of 6 when they know that it should be set at 3.

That's when they give you that ever so polite quote of $7400 to repair vehicle while you are trying to argue that it is still under warranty.

 

We have been getting away with it for a long time, unfortunately the Dealer has the upper hand until some 9yo inner city Hacker Prodigy decides he wants to sit down for 45min one night and trick the system that hundreds of college grads have been working on for a few years.

 

Now if-when-and how often the dealer actually snaps an ECU image and history for diagnostics is a different story. My Dealer that I just stumbled across today told me they will do all they can to keep that from happening as long as I am upfront about tuning on it. The dealer I had yesterday all but threatened to drop my warranty for putting Drop/leveling shackles on the back of my truck

  • Like 2
iCryWheniGoPoop Enthusiast

iCryWheniGoPoop

Posted
Posted (edited)

On our 14 Sierra, the biggest gains were inthe throttle response. I felt the factory throttle cal was about the worst offered by GM ever, and after some fine tuning, we were able to make the throttle much more lively, and we offer the end user further adjustment to make the throttle response work to your liking :)

 

Theres also a solid 20 rwhp/20-25 ft-lbs in the tunes...

 

Our tunes can't be seen by the dealer either ;)

Mike...

 

I love your matter-of-factness (pretty sure that's not a word) I tune with one of the two major software platforms available for GM products, have been doing it for right at 10 years and am pretty sure that the dealer could tell using my software. I know you guys put a lot of time and research Into your product and don't doubt your claim but.... let's just say that I purchase from you and install, would you be willing to carry warranty for the rest of the term? (Only If GM dropped me for finding the modification to ECU of course?)

 

I will start researching what you have to offer while I wait for your response.

Edited by iCryWheniGoPoop
  • Like 2
Chris Senior Enthusiast

Chris

Posted
Posted

A lot of people run Diablo with a custom. I like working with Black Bear myself. Their staff is very helpful

MotoMedic Senior Enthusiast

MotoMedic

Posted
Posted

I got a 5.3 tune from Black Bear.

Noticeable increased throttle response and pulls much harder above 2500 RPM.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • MASONV88888888
      Another 6.2L engine failure!

      By MASONV88888888 · Posted

      My 2025 Silverado 1500 had to receive a brand-new engine (long block) under warranty last month at only around 16,500 miles. Before the replacement, the truck repeatedly displayed "Engine Oil Level Low" warnings, even though the Oil Life Monitor still showed around 50% remaining after about 6,000 miles since my last oil change. After seeing the warning several times, I checked the dipstick with the engine cold, and the oil level was completely normal. The next day, the message escalated to "Add Engine Oil." At first, I assumed it was just a faulty oil level sensor, so I brought the truck to the dealership. After inspecting the engine, they found internal cylinder wall scoring and ultimately replaced the entire long block under warranty. Before this happened, I was planning to install a 4-inch lift and suspension upgrade on my truck. After needing a new engine at just 16,500 miles, I honestly don't see the point anymore. I also contacted GM to ask whether my vehicle qualified for a buyback, but I was informed that it does not at this time. Anyway, this experience has left me with serious concerns about the long-term reliability of this engine. I sincerely hope NHTSA expands the current investigation or recall to include 2025 model and performs a thorough inspection of affected vehicles. My biggest concern is that these engines may fail shortly after the powertrain warranty expires. If GM truly stands behind this engine, then at the very least, please consider extending the powertrain warranty to 10 years for affected owners. That would go a long way toward restoring customer confidence.
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      Without exception but then I'm the odd duck, right? I know what goes into that test, how it is calculated and thus how to beat it. But EPA values are often not beaten by the general public and the government has in past years adjusted the means and methods to come to those values to more closely approximate "Joe Average".    The only real trick to beating that EPA average is don't drive like "Joe Average".    It's the same method you used to profit from "Economic Migration" and in doing so beat the 'stats'. But you, like me, are not "Joe Average".     The thing you don't seem to grasp is this "Purchasing Power Index" isn't forward looking. It doesn't predict what it going to be but looks backward and states what it was. They are not telling us what the THINK, they are telling us what they MEASURED. Example:    Wife says "I'm going to lose 40 pounds by Christmas". May she does, maybe she doesn't but the doctors office who weighed her when she made that statement and again at Christmas only REPORTS what the RESULT was. You and I can banter about what was possible and what aunt Tilly did till the cows come home but the result is the result. Arguing otherwise is.....irrational. That's all I'm saying. This isn't about:      What you are calling a 'Statistic' is a RESULT not a CALCUATION and as a result the RULE. Like gravity as a rule, it can not be broken. 
    • MASONV88888888
      Rattle in the rear!

      By MASONV88888888 · Posted

      Just wanted to say thank you for posting this. Years later, your thread is still helping Silverado owners.   I bought my 2025 Silverado 1500 in January 2025, and I've had what feels like the exact same rattle since day one. After reading your findings, I believe my truck has the same issue with the cable carrier contacting the rear sliding window. To be honest, I had pretty much given up on pursuing the issue. It wasn't until I recently drove another brand's pickup that I realized just how quiet their cabin was—and how noisy mine has been all along. On my truck, the rattle happens on almost any paved road, gets even worse on rougher pavement, and I can even hear it during braking and acceleration.   I actually referenced your thread when submitting my case to GM, hoping they'll recognize this as a recurring issue instead of treating it as an isolated incident. The reason I reached out to GM first is because my dealership told me they would need to keep the truck for at least two days just to diagnose the problem. I was concerned that even after two days, they still might not be able to identify the source of the rattle before giving the truck back to me. I had also asked a few dealerships about this issue during previous service visits, but none of them seemed to know what was causing it or had a solution. That's why I decided to contact GM directly first, hoping they might already have an official repair procedure or guidance for this issue.   I also hope GM eventually comes up with an official fix for this problem. I have a feeling there are many Silverado owners experiencing the same rattle, but most either choose to live with it or simply don't know what the cause is.   Really appreciate you taking the time to document your diagnosis. Your post is still making a difference years later.
    • Buckwild27
      Gas Prices

      By Buckwild27 · Posted

      I have 2 choices. 
    • Grumpy Bear
      Gas Prices

      By Grumpy Bear · Posted

      Do you have access to BP fuels? Some stations have Silver 91 E-0 priced the same as their 93 E-10.  There is a local Marathon with 90 alky free for $6 a gallon but I go down the road to BP for $5-ish. They also have a 100 E-0 but that stuff is $10 a pop. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...