Would a computer from a ‘99 CVPI work plug and play in an ‘03 grand marquis? Assuming that I take the 140mph cluster also? I have a 120mph cluster but have changed my rear end from a 2.72 open to a 3.55 lsd and my current speedo is fast by 16% and predator says they don’t make a tuner for anything older than the 05 grand marquis so I can’t just get a tuner and mess with it myself.
The cars are functionally the same as far as I can tell. I don’t know about the harness but all the same things are in all the same places.
The cars are functionally the same as far as I can tell. I don’t know about the harness but all the same things are in all the same places.
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