[HWYSTR455]

Some people want to run a box anyway. My concern would be if the company goes under in 3 years or something, then what?

Then of course phones are constantly updating their' software, and there's a chance the app could get buggy, or not work at all. You would be forced to hold on to an old phone just to tune it.

MSD isn't going anywhere, and the R&D gets tons of money. They offer a desktop app too, which many racers use, and it's the same software the GRID uses.

I like the fact that the Progression body is basically a knock-off Pro Billet, but vendors are starting to go more toward hall effect triggers for a number of reasons, wish both vendors would switch over.

I also like the fact that the knock-off Pro Billets use a compatible cap & rotor, MSD/Holley has ridiculous pricing at $68 for each, and you can use the knock-off caps & rotors for like $40 for both. Sure beats $140 for a simple tune up.

I just got a Summit cap & rotor, and it fits the Dual Spark too. Nice.


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