LT1-LT4 Modifications 1993-97 Gen II Small Block V8

pacesetter headers

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Old Feb 21, 2008 | 08:05 PM
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hey everyone i have a 96 formula bird and im getting pacesetter long tube headers and matching Y-Pipe. does anyone now where i can get some rear Dummy O2 sensors for the Y-Pipe. i need it to still pass emissions and im getting the Y-Pipe that replaces the Cats Too, so thats why i need dummy o2 sensors. it would be alot of help. Thanks!!!!!! if it helps to i need to make sure the headers and y-pipe will fit with my magnaflow cat-back exhuast. again thanks for the help.
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Old Feb 21, 2008 | 08:09 PM
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it will fit your cat back no problem, but not sure on the 02's man...
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Old Feb 21, 2008 | 08:13 PM
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the best thing to do would be to just have them tuned out. thats what im fixn to do when i get mine. let me know how the install goes
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Old Feb 21, 2008 | 08:19 PM
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o2 sims are around 90 bucks, spend an extra 50 and get a mail order tune is my advice.
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Old Feb 21, 2008 | 08:25 PM
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ok i work on cars for a living and what not but that is one thing im not to familar with. how hard is a mail order tune to do and or install on the car and what can i do with it. is it something like dyno tuning. just obviously with out the dyno.
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Old Feb 21, 2008 | 09:48 PM
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what size O2 ext. did you go with? i cant figure out which to get, 12" or 24"? fronts only
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Old Feb 21, 2008 | 10:07 PM
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you need them both. the 12" for the passenger side and the 24" for the driverside. and yes front only. and i second the mail order tune.
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Old Feb 22, 2008 | 12:02 AM
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you need emisions your going to need a cat and also it wont pass inspection it will fail the visual once they put it up on a rack. If you want to go with no cats then take air and egr out no need for it. Im not sure how obd2 works but I think you mite want to front o2s so it can adjust air fuel accordingly and just have the rear o2 burnt out.
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Old Feb 22, 2008 | 12:04 AM
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Originally Posted by 96formulabird
ok i work on cars for a living and what not but that is one thing im not to familar with. how hard is a mail order tune to do and or install on the car and what can i do with it. is it something like dyno tuning. just obviously with out the dyno.
You just remove your pcm and reinstall it. Takes about 5 min tops.
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Old Feb 22, 2008 | 02:52 AM
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I don't know if this works on headers or not... But I know that with most applications, one can do the spark plug anti-fouler trick and you don't really NEED o2 Sim...

does that trick work in this scenario?

that being buy a set of anti-foulers, drill one of them hollow with a 3/8" drill bit, plug it into your 02 bung, screw the non-hollow one onto the hollow one(they come in sets of two) and then screw your o2 extension harness into the none hollow anti-fouler... I did this on my gtp when I went with a 3" downpip/highflow cat... and it cost me $3.99 as opposed to $90... Once I cleared the codes, they never came back, I was skeptical at first and asked "how in the hell will that work?"... went out on a limb, tried it, and i'll be damned if it didn't work...

of course you would need the o2 bungs to be there, which I don't know if they are...
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Old Feb 22, 2008 | 02:53 AM
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the "ghetto sim" as its called...


and some pics I made when I did it:


(the drilled one -vs- the none drilled one)



the way the piece should look that is to be screwed into your o2 bung


the bottom view




as gay as that looks, if freakin works, I had a SES light for MONTHS, tried that and went over a year without it(before selling the car, it never came back on)
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Old Feb 22, 2008 | 09:02 AM
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Will the car run right with an ORY with no rear O2's hooked up, until I get them tuned out?
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Old Feb 22, 2008 | 11:20 AM
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Originally Posted by HoLLo
Will the car run right with an ORY with no rear O2's hooked up, until I get them tuned out?
yeah, no problems at all. you will get a code but thats it. they just monitor the cats efficiency. the fronts are the only ones you need. they monitor the air/fuel ratio
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