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Thread: Need Advice with Headers
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01-24-2008, 11:21 AM #1
- Join Date
- Jan 2008
- Location
- Illinois
- Posts
- 14
Silver- 98 Z28
Need Advice with Headers
I am going with some stainless steel headers and ofr y pipe from LLP, which from what I have gathered around here are the SSautochromes. Anyway, I want to go ahead and delete the Air and EGR systems from my 98 z28 A4. I am going through these amazing posts in the sticky and I am not sure if I gathered all the information I need to do this myself.
1. Headers and ofr y pipe
2. Exhaust manifold gaskets and bolts
3. Band clamps
4. EGR block plates
Now, I was wondering what do I do with the o2 sensors after I delete the EGR and Air systems.
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01-24-2008, 12:53 PM #2
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01-26-2008, 10:24 AM #3
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01-26-2008, 01:03 PM #4
- Join Date
- Jan 2008
- Location
- Illinois
- Posts
- 14
Silver- 98 Z28
How big of an extension? ''12 or ''24?
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01-26-2008, 05:30 PM #5
- Join Date
- Aug 2007
- Location
- Greeley,Co
- Posts
- 1,006
Artic White- 1999 Z28 408 Stroker M6
24 inchs...
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01-26-2008, 05:40 PM #6
Will the stock O2's work in the front? Please say yes, I'm cheap. My feelings have all ready been hurt when I found out I need new CATs
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01-26-2008, 05:50 PM #7
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01-26-2008, 06:07 PM #8
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01-26-2008, 09:43 PM #9
- Join Date
- Aug 2007
- Location
- Greeley,Co
- Posts
- 1,006
Artic White- 1999 Z28 408 Stroker M6
I believe so, i gained forty two horses on my old LS1 with no cats, no egr or air fittings... great hp to cost ratio.... I went with QTP'S though...
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01-27-2008, 05:09 AM #10
i used the old 02's and rigged up extensions now my car is throwing codes. instead of doing it the right way off the bat like i should have i have to buy new 02's and extensions and wast time to take it all the way back to the shop. do it right the first time no cheap way around it. as i have found out
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01-27-2008, 05:14 AM #11
If you can get 42hp putting headers on with now cats and no egr stuff, what will a good estimate be with high flow cats and all of the extra legal BS be? Would 30hp be a good estimate?
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01-27-2008, 05:36 AM #12
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01-27-2008, 06:08 AM #13
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01-27-2008, 06:18 AM #14
here's what i did, i didnt delet my egr because that seemed a little more difficult, i got an ORY and deleted my cats, and I had to get 24 in extensions for the front 02's and simulators for the rear 02's , that was that, picked up some power and a lot of noise, definitely worth it
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01-27-2008, 09:09 AM #15
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01-27-2008, 11:02 AM #16
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01-27-2008, 11:03 AM #17
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01-27-2008, 12:13 PM #18
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01-27-2008, 12:42 PM #19
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01-27-2008, 03:09 PM #20
- Join Date
- Aug 2007
- Location
- Greeley,Co
- Posts
- 1,006
Artic White- 1999 Z28 408 Stroker M6
you just need the front's here is what they look like...http://shop.quicktimeperformance.com...ct_detail&p=21
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