Ls6
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It iwill allow your car to breath easier, and should pick up a few HP. I dont think it will affect your tune at all. But it wouldnt hurt to get retuned after your done with the install.
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If you have a 99-00 with 26lb. injectors, your long term fuel trims will go way up and your injector duty duty cycles will get pretty strained at WOT. I just swapped to 28lb. injectors and flow rate, and it brought the LTFT's and INJDC's back into line. I'd recommend going to bigger injectors and changing the IFR table when you swap the manifold.
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Originally Posted by Tainted
no, when you get a bunch of bolt ons under your belt a good tune would benefit you then, but not just yet
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Originally Posted by RevGTO
If you have a 99-00 with 26lb. injectors, your long term fuel trims will go way up and your injector duty duty cycles will get pretty strained at WOT. I just swapped to 28lb. injectors and flow rate, and it brought the LTFT's and INJDC's back into line. I'd recommend going to bigger injectors and changing the IFR table when you swap the manifold.
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#8
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also, if you have egr and are going with an LS6 int mani w/o then you will definitely need a tune cause it will throw a code, on a 98 with a LS6 int that has egr provisions, should be an in & out swap with no probs on the tune