What did you do to your NNBS GMT900 Tahoe/Yukon Today?

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Doubeleive

Wes
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^x2^
I just wouldn't trust the same brand of converter after that.. Why are our cats so expensive? Now I'm scared!

I once had an MR2 that did not pass smog, turned out the aftermarket converter the PO installed had only 1" thick of honeycomb. Swapped it out and it passed no problem.
they said these magnaflow one's I have are no longer allowed in ca but are ok because they are grandfathered in, the one on the other side is fine, they are replacing the broken one with a catco, a new magnaflow has doubled in price. apparently they pulled the c.a.r.b. certification, just a money grab.
 

Sam Harris

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they said these magnaflow one's I have are no longer allowed in ca but are ok because they are grandfathered in, the one on the other side is fine, they are replacing the broken one with a catco, a new magnaflow has doubled in price. apparently they pulled the c.a.r.b. certification, just a money grab.
Fückin Cali
 

mikez71

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a new magnaflow has doubled in price. apparently they pulled the c.a.r.b. certification, just a money grab.
That explains it! We are so screwed.... Tyranny, gotta hate it..

Ebay converters won't pass? I see entire y pipes with 2 cats for ~$200 shipped, all the way across the country..
 
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Doubeleive

Wes
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That explains it! We are so screwed.... Tyranny, gotta hate it..

Ebay converters won't pass? I see entire y pipes with 2 cats for ~$200 shipped, all the way across the country..
the cat's have to be carb certified for the year/make/model vehicle, you can't just throw anything on it. If you get caught then you can't register it until it is fixed correctly, if a shop gets caught installing or modifying they can get both fined and loose there license.
 

Doubeleive

Wes
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Brake time I guess
PXL_20230512_155518096.jpg
 

Doubeleive

Wes
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How much? $
Not sure last time he gave me a deal and said they normally charge more for the size and I think it was like $30 or so for both, this shop does mostly semi truck equipment, tractors and stuff like that. they have a small machine shop for brakes and hydraulic lines and etc. most places do not turn rotors anymore.
 

mikez71

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made some dashboard band-aids..
2E5A7082-8BE6-4F45-8E94-C48263CE9C2C.jpeg

these went underneath of course (removed cluster and glovebox/airbag.. )

how long will it last? I didn't really prep the surface other than an alchohol wipe..

would change the dash, but after investing that kind of money i would want to fiberglass the bottom and vinyl wrap the top.

if the bandaids break, i see a dashcap in my future.. I know some of you hate them, but i dont like fuzzy things on the dash...
 

j91z28d1

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if I were to keep driving it until the cel comes on then it could probably be warranted but I can't find my receipt anyway so I don't even know if it would have been covered either way. I think they only give a 2 or 3 years warranty on these at the most.
not going to pay twice as much or more for a new y pipe

so I had the thought, if you have hptuners, could you turn on the fault code for that rear o2? I am pretty sure you can fail stuff. like you fail the maf sensor and have to disable the fault code to tune the map table. maybe you can fail the o2 and leave the code enabled so they can see it on their scanner. save to 850$ and it's actually broken. so it's not like you're getting over on them.
 

j91z28d1

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made some dashboard band-aids..
View attachment 399168
these went underneath of course (removed cluster and glovebox/airbag.. )

how long will it last? I didn't really prep the surface other than an alchohol wipe..

would change the dash, but after investing that kind of money i would want to fiberglass the bottom and vinyl wrap the top.

if the bandaids break, i see a dashcap in my future.. I know some of you hate them, but i dont like fuzzy things on the dash...


when I got mine is was cracked.. started checking it out and seems the center speaker has no support. it's just hanging off the plastic that gets hard and brittle. I made a quick support for it, popped the cracks back together so they didn't look so bad. it's not gotten any worse so far and looks good enough not to bother me everytime I drive it.

the thin plate near the base of the windshield just pops up with clips. a few are going to break off, but mix up some plastic weld for them and it pops right in after making a center support.

after seeing it, I'm convinced if gm would have supported that speaker the broken dash wouldn't be nearly as bad is it is. the plastic is crap, but all gm dash plastic is kinda crap and they don't break
 

mikez71

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Regarding the plastic, I'm amazed I didn't break the trim pieces! BIG Thank You to Tom who did the dash removal instructions on this site!

Yep I noticed middle was weak too. What did you use to prop it up? When epoxying my dash back, I couldn't get the parts to lineup without weighing down the right side of the airbag crack and pushing up center part. Same with cluster crack. If I only pushed center up, the crack opened up. Terribly flimsy dash.. Here's some pics of it now..
460BDDC9-E078-43B3-A485-AA82529BDF53.jpeg

BE8CBD0E-AF9D-4963-9594-32C7C8F7B061.jpeg

actually epoxied right side in two stages, just a little jbweld showing inside crack, but its pretty much perfectly level, driver side theres a ledge in the middle third..
 
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mikez71

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so I had the thought, if you have hptuners, could you turn on the fault code for that rear o2?
wont pass with an o2 fault code! wont pass with a change in tune.. I wish they went with tailpipe testing only.
 
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When towing a trailer and the Park Assist Blocked See Owners Manual message is displayed on the DIC, how do you get the message off so you can see other info in the DIC?
 

Geotrash

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When towing a trailer and the Park Assist Blocked See Owners Manual message is displayed on the DIC, how do you get the message off so you can see other info in the DIC?
Press the park assist cancel button below the climate controls
 

Doubeleive

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Well brakes are done but took a lot longer than it should have,, pad clips were no good and the bracket slider boots were bad and nobody had just the brackets in stock and I wasn't going to do it twice nor leave it all apart on the street so I ended up buying 2 new complete calipers for the brackets only so they ended up costing me $76 instead of $40 if I had ordered them.
 

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