Help! Am I gonna be too lean?

Dwilly

Hi all, I've tried searching and couldn't find a blunt exact answer to this question. I have Berk hfc and cbe on their way and am wandering if I will NEED to tune after install. These will be the only performance mods I put on other than maybe a drop in filter. I am not so concerned with the couple of horsepower I might be missing out on if I don't tune. I would really rather not tamper with the ecu. However I will if I HAVE to. The only 2 things I'm wandering are will the car be too lean with these mods and no tune. And if I install with no tune am I even goin to notice a performance increase with said mods. I know on a dyno they improve numbers even without a tune but numbers can be deceiving. Will I FEEL a difference with them, I guess would be a better way to ask.

thanks in advance for your help and I'm sorry if this has been covered before.