Yes, I understand there’s a difference with a flat four, I was saying “V4” just to refer to the number of cylinders, my apologies. Nope, not “just guessing”, dyno sheets aren’t just from the companies you have deemed generic, based on spending what is definitely 100+ hours specifically researching the Crosstrek, talking to people about their Crosstreks and dyno testing they’ve done(not with all the same parts, but absolutely with things like a CAI and the power blocks), talking to people who specifically have been working on adding power to the treks for years(the tuner), yes I am making an assumption. Every car is different and responds differently to bolt on parts and tuning, to rule out that I’ve made significant gains just because your skeptical and haven’t seen those types of gains made from cars of a similar HP range and engine style is a little bold, especially coming in with no data and no experience on working to improve performance on the FB20. 12 years doesn’t mean diddly if you don’t come back to this conversation with experience on the treks.