Jump to content

6.0 cats

cfitz

Recommended Posts

cfitz Enthusiast

cfitz

Posted
Posted

Considering my cats *might* be failing, and the OE ones are $$$$ and I'm not a huge fan of walker exhaust, anyone have an input of magnaflow direct fit? Are they worth it? Noticeable difference? By the way these are for my 04 2500 HD 6.0 and I'm planning on a muffler back from Corsa or MF in the near future. And I have an HP tuners license I'm planning on using after cats are installed, if that's the problem of course....Thanks!

Chris Senior Enthusiast

Chris

Posted
Posted

As long as you're not in Cali the magnaflow will work nicely

 

Sent from my Samsung Galaxy S4 using Tapatalk Pro

  • 2 weeks later...
Stl_Denali Enthusiast

Stl_Denali

Posted
Posted

Considering my cats *might* be failing, and the OE ones are $$$$ and I'm not a huge fan of walker exhaust, anyone have an input of magnaflow direct fit? Are they worth it? Noticeable difference? By the way these are for my 04 2500 HD 6.0 and I'm planning on a muffler back from Corsa or MF in the near future. And I have an HP tuners license I'm planning on using after cats are installed, if that's the problem of course....Thanks!

 

Did you install these as of yet? I just ordered the same for my 05 Yukon Denali.

cfitz Enthusiast

cfitz

Posted
  • Author
Posted

Did you install these as of yet? I just ordered the same for my 05 Yukon Denali.

No not yet, haven't even ordered them. If you've installed them, please post up! I was having an issue with the CEL flashing on the highway. Turns out the MAF was bad, causing rich conditions on both banks (PO175/172). Replaced it, performed the crank re-learn procedure and so far so good after a week....

Stl_Denali Enthusiast

Stl_Denali

Posted
Posted

I just got them today so i will be putting them on this weekend or Monday. I took my truck in to a friend that determined Bank 2 was the culprit. O2 sensors look fine and my MAF is fairly new. Hopefully this will do the trick. Just hop those bolts are to stubborn..

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • Grumpy Bear
      The Peckish Synapse

      By Grumpy Bear · Posted

      You can always count on greed to prey on ignorance and stupidity.    Friend bought a 2019 Ford Flex and asked me about using Valvoline R&P 5W30 in it. Told him give the miles on it and the fact it wasn't yet using oil that it was a good plan. He uses a Valvoline quick change shop for his oil service.   First they tell him that isn't the oil the OEM recommends. He told them he didn't care what the OEM thought. Then they floated the, "But it will void your warranty"    His reply was it's a 2019, there is no warranty and informed them their knowledge of the law was lacking.    Then they tell him 'But it will ruin your motor"!.    Mine to ruin he says. Finally they give in and charge him 150% the semi-syn price    Point it the brainwash is so embedded that even the service industry is drunk on their swill. The public is right behind them. Echoing the same lies on every forum and media platform. If the end goal is indeed EV then I'd say that ship is about built. 
    • CamGTP
      Gas Prices

      By CamGTP · Posted

      Diesel hit $6.00 here today at the truck stop.   Payed $2.79 for E85 today too.
    • richard wysong
      Electrical Problem - solved

      By richard wysong · Posted

      Thanks for posting, I'm sure it will help someone
    • Brendan C
      2026 6.6 L5P oil cooler leaking oil at 4,000 miles

      By Brendan C · Posted

      New to diesel trucks. I happened to find my oil cooler leaking oil externally with only 4,000 miles on the truck. I didn’t realize this was an issue until I started researching it. Dealer is going to replace it under warranty but I’m wondering if there’s anything GM is working on to fix this issue. I’ve heard the oil filter used is the same as they use on their V6 motors and that’s what is causing the problems. Should I switch to a bigger filter or keep using the OEM recommended? 
    • Vu1can
      Seems to be Missing a lot of Updates

      By Vu1can · Posted

      So, GMCustomerService:  Judging by the Update History pictured above, is this truck missing any updates that it actually needs. If it's just for the infotainment system, the radio is working fine and no trouble with SeriusXM. and Android Auto is working fine wirelessly with my phone. Some months ago, an update notice was sent to my truck. I approved the update and it finished saying that the update was successful, but it seems that whatever that update was, it didn't actually get installed - at least not if I'm to go by the Update History shown above.   So, again, are there any updates that this truck really should have? I've checked with my dealer but they're reluctant or commit to anything and if I want them to check, they require a $200.00 fee just to check it out and then I'd have to pay for the actual update(s).    Ignorance is bliss, and if none of the updates goes to fixing any mechanical discrepancies, I'll just leave things as is.  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...