YSI vs YSI-B
I’ve contacted Vortech and of course they say it’s worth the upgrade. But when I ask for results they just say “oh we see 125-150 hp gains”. Can’t really tell me where in the graph. I don’t plan to spin the engine to 7k+.
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Almost every comment online, just seems to say a little more boost...but few seem to be shouting about how much faster they went
But if you need more than a YSi....I would perhaps consider what ECS are talking about here if they come to fruition.
https://www.corvetteforum.com/forums...7-2500-hp.html
The Best V8 Stories One Small Block at Time
http://rmcrperformance.com/products-...t-trimysi.html







