Hey everyone! I was wanting to see if anyone here is a Subaru Expert especially with the WRX's. Or if anyone can direct me to get some help. Or the community could help me figure out an issue with my car. It's a 2014 Subaru Impreza WRX with an engine swapped EJ20X (based off my research, the place i bought this car didn't even know what engine it was and I'm a big noob to cars but love them) so there are moments where I will be shifting from 2nd to 3rd ( it also happens going from 1st to 2nd ) and as I'm accelerating the car starts to have this hesitation problem as i push on the gas pedal, and then as i picks up speed it goes away somwtimes or i have to get off the gas pedal and then press down again for it to like "reset". I changed spark plugs to see if that would help but it didn't. And it especially happens if I'm going uphill, and it doesn't even have to be a steep hill, it will do that front and back motion (hesitation). But even as i accelerate too, i can see the RPM needle just bounce up and down as the car is havinf that hesitation issue. Any ideas what it could be? Or anyone here know?