ECU and header question? - Hummer Forums by Elcova

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ECU and header question?

01-15-2007, 03:34 AM

rocketw19

Hummer Professional

Join Date: Sep 2005

Posts: 339

rocketw19 is an unknown quantity at this point

ECU and header question?

my 06 SUT has magna charger shorty headers and corsa cat back. i just installed the shorty headers and now my shifting point are almost at 6000rpms from 1st to 2nd and when cruzin if i give just a lil gas it down shifts hard. it ran perfect before the headers, is the headers causing my ECU to do this? thanks for your time.
DRAGON do you guys sell tunes or do i need to use nelson? any recomdations?

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