I've been seeing a lot of stuff about an air box mod and was wandering if it is better to drill the holes or to just take off the lid, any and all advice is welcomed

Hi. I was wanting to do some small mods to my KFX 700 but I didn't want to go to the extreme. I was thinking about a slip-on pipe with maybe a 6 hole mod to the airbox. I was wondering if anyone had an idea on what size jets to start with, or if it would even be worth it to try these mods. I'm...

Ok, 1st im still a noob to these mods. . . But i am trying. So this weekend i tried to do the 12 hole mode to my kfx 700. Where did i go wrong? After i drilled the 12, 1 inch holes around the top of the lid my bike sounded like i had pipes on it. . . ? But it accelerated alot slower and wouldnt...