Headers - Ordered - Discuss install and options

[pdxrealtor]

Why is that? Any shop should be able to cut out the factory cats, and weld them back in down the line...

[[__--MUD--__]]

Originally Posted by pdxrealtor

Why is that? Any shop should be able to cut out the factory cats, and weld them back in down the line...

X2- Cut those bitches out and weld'em in where they need to be. Anyone compitent in exhaust work can do this.

[pdxrealtor]

Picked up my class 90 Zink bolts today from fastenal. $50.00

Torque specs are- first pass to 11lbs, and a second to 18lbs

I will need O2 extenders. But I'm not sure how many... I though I saw 4 sensors. What kind will fit? I can't find any for hummer. Only GM and they all look different. This is a mail order deal so I want to get it right the first time.

What is the O2 socket size, can I just use a wrench? It appears so, but...

H2much ..... You out there? You mentioned jamming these in through the bottom. Is there NO WAY to install them from the top? I'm on wheel ramps or jack stands.

[pdxrealtor]

This job is officially underway.

Driver side header off with no issues, except the one broken bolt head near the fire wall. Nice size stud sticking out of the head to get a grip on.

About to make sure none of the bolts break on the pass. side then I'll get out the grinder and remove the cat froward.

Been taking pics so I'll post when I'm done.

What I can say is easy easy access with wheel and wheel well liner removed.

[Joe]

Awesome. Look forward to seeing more

[H2Much]

Hey, sorry, haven't checked in for a few days. Yah, you will want to feed them through the bottom, but the challenge is getting the truck up high enough in the air. You can also put them in through the top, but you have to pull some stuff out and take it apart to get them in there. If you don't have a way to get it higher in the air, maybe going through the top would be better.

High flow cats should keep you good to go in OR. I too was concerned about it here in UT as they are anal as all hell with everything on emissions and safety. I almost couldn't pass safety instection because of my tires sticking out the side and my lift; though I have a very mild lift in my opinion. Pisses me off as I see trucks much more lifted than mine driving around without any problems getting registered. Anyway, let me know where you are at with this and I can provide you more detailed help if needed.

[pdxrealtor]

Thx for your reply.

Headers are installed and cat forward to headers fit like a glove. I still need to sinch it all up in places between headers and muffler but it's all in place and I simply ran out of daylight and energy.

The O2 s fit with no extension. There are 3 bungs on each side. I need to get a bung plug (that's what she said! Lol) for 2 bungs.

That one bolt that busted off on driver side had a nice stud sticking out of the head. Turns out I had a full blown craftsman stud extractor kit in my box. I was stoked. Here's the sh*ter....I put the stud extractor piece on the ratchet and turned it a couple times Easy easy.... 2 turns later the bolt broke again... IN THE HEAD.... Damn.

My buddy had top of the line bits and easy outs ...... And skills.... And got it out. Pics to follow in my official write up. I took tons of pics.

Overall it's a one day job if you start early enough, I started at 1pm.

Fyii... OBX does not come with header bolts, and does not come with EGR block off plate which the hummer needs. A side from that fit was perfect.

More in the official thread with pics, to follow soon.