MJ Engineering + Performance satisfied customer

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D_R_C

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Another satisfied customer,
I ordered EFI AutoCal from Mike after 3:30 PM Pacific time March 7th 2013 for my 2007 GMC Yukon Denali 6.2 gasser.
He shipped it March 8th Friday morning and I got it March 11 @ 11:00 am Pacific time.
I e-mailed Mike the stock files ECM and Trans so he could write the tunes, he patiently walked me thru downloading the new EFI Explorer on the phone and the tunes, I already had the old version.
By 2:00 PM Pacific time I had the tunes loaded in and was driving my newly tuned Denali.
My Denali runs much better and the shifts are quick and very nice compared to stock.
MJE's EFI tuning engine and trans along with my DIY CAI stock intake mod she runs great.
I'm Very Impressed
I should have done this long before now. :happy107:

Now I just gots to work on getting EFI AutoCal ECM and Trans tuning from Mike to replace the EFI ECM "only" tuning that I already have for my Dmax :party36:
 
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NathanJax

Vacation Nathan
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Sounds great!

I love to hear great feedback about our vendors here!!!!
 

MJEngineering

New England Tuning
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Thank you Dan! You have been a joy to work with and it makes us so happy that you are enjoying the custom tune and newfound power! Keep in touch, Mike
 
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