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Old Feb 16, 2015 | 01:40 PM
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NMMike2012GS's Avatar
NMMike2012GS
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From: Corrales New Mexico
Default Yet another header ?

I have read several post regarding swapping out stock LS3 exhaust for one from a Z06 which to me some advantages exist so with that in mind when purchasing a set of headers for a LS3 wouldn't the same advantages exist in buying a set of Z06 headers as opposed to a set for a LS3.
I'm currently looking at having headers and an X pipe installed on my 2012 M6 GS and would appreciate some pros and cons.
Thanks in advance for replies.
Mike
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Old Feb 16, 2015 | 02:31 PM
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pro: cheaper than aftermarket, meets emissions in CA etc, low price

con: long tubes make double the gains, Chinese headers work great and don't cost much more.
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Old Feb 16, 2015 | 10:50 PM
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NMMike2012GS
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Originally Posted by theblue
pro: cheaper than aftermarket, meets emissions in CA etc, low price

con: long tubes make double the gains, Chinese headers work great and don't cost much more.
Sorry if my question was misleading so to clarify I was really asking if long tube headers designed for a Z06 would be a better choice for an LS3? Yes I realize the Z06 is an LS7 but based on the fact that members are installing a stock Z06 system on their LS3's I'm thinking if swapping a stock system has some advantages a set of long tubes designed for a LS7 would be a better choice as opposed to a set designed for a LS3.
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Old Feb 17, 2015 | 08:13 AM
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No, no gain. They are generally the same header, actually. People can argue the small details of primary tube diameter, but they're all the same between LS2/3/7.

Specific-made LS7 headers will have a "D" shaped port matching the exhaust port on the cylinder head.
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