It sure looks good for the price, I dont like the small screen to tune through but that is not a deal killer. It only has one O2 input, what about the other bank? For a basic install it is a steal, for the all out stuff it is option limited.
The harness & connectors alone are worth the $1150.
Take control of your 302ci Small Block Ford engine in your Fox Body Mustang with Holley EFI Terminator X system! Don't settle for the factory ECU with a cumbersome tuning interface or pre-programmed tuning chip when you can have complete control of your engine, self-learning fuel strategies and...www.holley.com
Holley has this thing with insisting you use there proprietary products. They use all gm sensor where necessary or possible.
What about the GM style sensors? Is a sensor a sensor, just the connector is different or does it require special calibrations to run the GM sensors? I'm thinking purely from a wiring harness perspective if you were to use it for a different stand alone system.
That's the opposite of proprietary.
They're using off-the-shelf parts instead one-off that you can purchase [only] from them.
If you're using their harness then it's plug and play. As far as calibration goes, even a GM sensor combined with a GM ECU has a tolerance. Ford sensors are the same way. I haven't come across too many self-tuning products that don't allow you to scale a sensor unless you're talking about some sort of hand-held (but that's not self-tuning).
Ah yes... Let's not forget the added benefit of deleting the 30+ year old OEM harness (since there are no real alternatives I'm presently aware of).
You can't just say: 'I like this' and not at least give us a link. lol
What are the pros and cons?
So the 'con' there if there is one, is that it's a one-size-fits-all kind of thing.
The only reason that I say that is because I thought it might have been a Mustang specific harness (super difficult to find these days for Fox and SN at least).
Ron Francis makes other more simplified harnesses that would likely be a very good fit for the Foxbody, and they're cheaper than the Telorvek version. I believe they're direct copies of the old Ford Racing EFI harness.