I've recently begun modding my '03 grand marquis.
I changed from an open diff with 2.72 to a lsd 3.55. this makes the speedometer off by 16% which is obnoxious. I can tolerate it and i have an app on my phone that gives me a fairly accurate speedo but it only makes sense to get a tuner to correct this and make changes to go alone with future mods.
Additionally i have a 2014 explorer with the eco boost.
I'd like to be able to mod both with one tuner assuming additional licenses are available for one tuner. and one tuner is able to do both.
everything i've read thusfar is about 2005+ marquis. My question is what tuner will work with at least my '03 grand marquis?
2003 Grand marquis
Moderator: sohfast94
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mikel
- Posts: 57793
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
Re: 2003 Grand marquis
Unfortunately we do not offer anything for the 03 Grand Marquis.
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
tech@diablosport.com
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
tech@diablosport.com
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nathansmith50
- Posts: 2
- Joined: Sun Feb 09, 2020 10:50 am
Re: 2003 Grand marquis
That sucks. Since it is functionally the same car What if I were to get an ECU from a 2005 Grand Marq or Crown Vic?mikel wrote:Unfortunately we do not offer anything for the 03 Grand Marquis.