slvrlegacygt Posted November 3, 2016 Share Posted November 3, 2016 Would a 2013 factory header fit my 2007 gt. Would it net any gains over the legacy stock headers? Link to comment Share on other sites More sharing options...
utc_pyro Posted November 3, 2016 Share Posted November 3, 2016 A) Yes B) No, it's more or less identical The best gains would be full equal length headers. If you don't want to go that far, a PNP set of OE headers with the grimmspeed crosspipe will get you something. Link to comment Share on other sites More sharing options...
slvrlegacygt Posted November 9, 2016 Author Share Posted November 9, 2016 Yea I kind of figured as much I couldn't imagine them being much different from what we have already. Thanks for helping me out. Link to comment Share on other sites More sharing options...
whitetiger Posted November 9, 2016 Share Posted November 9, 2016 just cause it came from an STI, does not make it special. Link to comment Share on other sites More sharing options...
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