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  1. Prospect62

    Help me choose a cat-back!

    I don't think there's any need for that type of vitriol. Holy balls man. I do very much appreciate all the input from everyone that commented and I've taken everyone's experiences into account. I guess I'm a jerk for being careful about how and where I plunk down $1200 of my hard earned...
  2. Prospect62

    Help me choose a cat-back!

    Thank you. I have my AFM disabled via tune, so not a concern thankfully. I see many guys with the aftermarket exhausts and the AFM activation sounds horrible.
  3. Prospect62

    Help me choose a cat-back!

    Thank you for the info. I appreciate real world opinions.
  4. Prospect62

    Help me choose a cat-back!

    Do you notice any drone or booming at cruising speeds?
  5. Prospect62

    Help me choose a cat-back!

    Apparently the GM Performance Parts version of the Borla exhaust has the flapper. The aftermarket version that you buy direct from Borla does not. Despite it being up with Corsa on the high end of the price scale, I think I may try the Borla. The Gibson people were very nice when I asked about...
  6. Prospect62

    Advice on wether I should skip this deal or check it out again 2016 Yukon xl denali help a mom out

    The symptom you describe in and of itself doesn't really indicate any specific problem. It's kinda vague. But food for thought...I just put a transmission in my 2016 Suburban (same as the Yukon XL) at about 95,000 miles. If you do some reading here and elsewhere, you'll quickly come to the...
  7. Prospect62

    Help me choose a cat-back!

    The Borla is definitely in the running.
  8. Prospect62

    Help me choose a cat-back!

    Despite it's heavy price advantage and what looks like outstanding build quality, I have to pass on the MBRP. Every single video I have seen online of MBRP systems has disappointed me. They just sound boomy, flappy and loud for the sake of being loud...which I hate. I want something with a...
  9. Prospect62

    Help me choose a cat-back!

    Thank you. You like yours? It isn't "too much"?
  10. Prospect62

    Help me choose a cat-back!

    Does the Corsa have a flapper valve for the AFM or is it a straight pipe into the muffler?
  11. Prospect62

    Help me choose a cat-back!

    Well, after cutting and splicing on my factory exhaust way too much, it's finally starting to give up. Since I bought the truck in January 2020, I've fiddled with the OEM "norma" clamp and never gotten it to seal right, I've had aftermarket mufflers welded in and cut back out, I've had my...
  12. Prospect62

    K2XX Reliability.

    Really enjoying my 2016 Burb. I bought it used at 60,000 miles. Within a week of buying it I had a misfire which turned out to be bad plugs and dirty injectors. Had those replaced and immediately tuned out AFM using a Superchips tuner. I also deleted the "flapper" exhaust valve and added a JLT...
  13. Prospect62

    The transmission monster finally got me?

    Got one on the shelf, meant to put it in over the summer but never had the time. And now here we are. I sent it with the truck to the trans shop.
  14. Prospect62

    The transmission monster finally got me?

    Haven't checked it yet.
  15. Prospect62

    The transmission monster finally got me?

    I'm at around 94,000 miles on my 6L80E. Shifting fine, no issues up to a couple weeks ago. After my wife took it on a long road trip, the next day I started to notice a high-pitched mechanical "whine" that would come in just prior to upshifts at higher RPM. Shifts were noticeably jerkier and...
  16. Prospect62

    Calling all GMT400 Z56/PPV experts...

    Wow thank you for that. Pretty neat little blurb.
  17. Prospect62

    Calling all GMT400 Z56/PPV experts...

    I'm looking at buying a 99 Tahoe PPV/Z56 police package. I wasn't on the hunt for one but one came up and damn, you just don't see these anymore. Question is, what was the original tire and wheel size for these trucks? The owner of the truck has some ridiculous aftermarket wheels on it and I...
  18. Prospect62

    Updated Thermal Control Valve

    Brad I think what happened in your case is you mistakenly bought the valve for the 6-speed when you have the 8-speed tranny. You need part #13511137, and that would explain why your lines didn't match up just right. It's weird though, there is no mention of the 8-speeds in the TSB. But if you...
  19. Prospect62

    Updated Thermal Control Valve

    Oh that's interesting. Perhaps if this one doesn't fit right I'll try the one for aluminum lines (which I think is what I have anyway). I was thinking, @Denali Brad may have had an issue because he has an 8L90 not the 6L80. Great info, thank you!
  20. Prospect62

    Show off your 2015+ leveled Tahoes and Yukons!

    Well she's been ******* me off with electrical issues lately but she still cleans up nice. Specs in sig...
  21. Prospect62

    Updated Thermal Control Valve

    Excellent tip. I just got my new updated valve yesterday, was looking forward to a simple plug & play swap - guess it won't be that easy. It's never easy is it...
  22. Prospect62

    Ground issue?

    How do you do a voltage drop test?
  23. Prospect62

    Ground issue?

    Well a couple days ago, despite the fact that the truck had been behaving normally since the battery replacement, I got under it and took the ground wire off where it's bolted to the passenger front of the frame right behind the right front tire. Numerous YouTube videos suggest this as "the...
  24. Prospect62

    2017 Suburban - failed MASS inspection - Question

    As others have said, the emissions readiness monitors just need to set. In order for that to happen, the truck needs to be driven though a set amount of drive cycles and at various fuel levels, including startups, shut downs, constant speed cruising, and varied throttle starts and stops. Many...
  25. Prospect62

    15+ battery cable issues similar to previous generation?

    I think I may be dealing with this issue now...seems to me that there are issues with grounding points inside the vehicle under the dash and then with the negative battery cable where it mounts to the frame area. Have seen reports of a few "bad cables" on K2 trucks but in my research, it looks...

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