9r17crom
Moderator: mikel
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sgtlong527
- Posts: 8
- Joined: Sun Jun 07, 2009 11:38 am
9r17crom
it is my understanding that if i update to the 9r21 crom, i will get a check engine light due to the dynatech longtube headers i have installed on my 09 challenger rt 6spd and the lack of ability to turn off the rear 02 sensors. does anyone have a spare copy of the 9r17 crom that they can forward to me? i'm curious to see what the new updated tune does to the car but i want the luxury of being able to return it to the 9r17 crom so i can turn off the rear o2's while i wait to get a custom tune done in the event i don't like the update.
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Cruisin1966
- Posts: 248
- Joined: Wed Feb 18, 2009 12:07 pm