Originally Posted by ourflat
Be careful with these ECM/PCM Map upgrades. As a Master Tuner, I tell my customers that this PCM software upgrade could/will void any manufacture warranty on the vehicle! When your vehicle goes in for maintenance at the Ford dealership, they often check the PCM to update it. My 2013 has already had an update to the PCM from Ford about 6 weeks ago. All I am saying is if you want to flash your ECU/PCM then be prepared to loose your powertrain warranty from Ford. Something to think about....
Have had my 5 star tuner on my truck for 5 years now with ZERO harmfull effects. When my truck was still in warranty I would remove the tune and reinstall the stock tune before taking it in to dealer, about a 10 minute job. The performance gains for towing are outstanding and I would not be without them.
Once you do a tune you would not be without them either.
I use the 87 perf tune for daily driving and local towing, towing in hilly areas I switch to the 91 perf tune and it is night/day difference.
Also, according to the Moss/Magnuson Warranty act, adding non factory items does not void your warranty, the burden would be on Ford to prove that my mod caused damage to a warrantable item.
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