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Muffler shop ? and header questions..

Hey guys i finally found a pretty nice little Muffler shop in my town that is willing to work on a 370z because ive looked every where and no one

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Old 05-05-2009, 01:51 PM   #1 (permalink)
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Post Muffler shop ? and header questions..

Hey guys i finally found a pretty nice little Muffler shop in my town that is willing to work on a 370z because ive looked every where and no one will do header installs so i called them and they said they have never done a header install on a 370 or a 350 but they dont think it should be a problem.. Is there anything i should be concerned about or inform him about doing the install like once i herd dont use air tools?? and what is a good price for header, hfc, cat bak all to be installed?
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Old 05-05-2009, 06:57 PM   #2 (permalink)
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Originally Posted by AceSpade77 View Post
Hey guys i finally found a pretty nice little Muffler shop in my town that is willing to work on a 370z because ive looked every where and no one will do header installs so i called them and they said they have never done a header install on a 370 or a 350 but they dont think it should be a problem.. Is there anything i should be concerned about or inform him about doing the install like once i herd dont use air tools?? and what is a good price for header, hfc, cat bak all to be installed?
Don't worry about the air tool thing, there's really no way to realistically fit an impact wrench onto any of the tough bolts on our exhaust setup. Except perhaps that top bolt of the 3-bolt cat<->header flange that has to be done with long extensions from the top. I guess someone could try to use an impact + extensions there, but it seems silly as all the extensions will sap the impact effect anyways. A breaker bar is best there (and lots of penetrating oil).

I don't know what others have been charged for installing headers, but I wouldn't be surprised at a high labor bill for that part. It's really a nightmare, and it's a very cramped space to work in.

Tell them to be extra careful with the Upper O2 sensors. They can be very difficult to removely cleanly (again, lots of penetrating oil and soak time helps). They're wideband AFRs that the engine uses to tune itself in realtime, they're not just emissions equipment (like the rear ones in the cats). If you mess one up, expect to wait a week for special dealer ordering and pay $400 each. The actual manufacturer (Denso) has confirmed that they custom made these sensors for Nissan, there is no aftermarket equivalent, and they sell them through nobody but Nissan.

The rest (hfc/catback) is pretty standard and easy.
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Old 05-06-2009, 12:05 AM   #3 (permalink)
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The actual manufacturer (Denso) has confirmed that they custom made these sensors for Nissan, there is no aftermarket equivalent, and they sell them through nobody but Nissan.
Imagine that!
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Old 05-06-2009, 12:35 PM   #4 (permalink)
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Have them review this thread: http://www.the370z.com/diy-section-d...tallation.html

And maybe try doing a search next time.
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