I recently noticed that the engine RPM increase by around 300-400 rpm after I clutch in. When I'm shifting, I let off the gas, push in the clutch, and notice that the RPM rise. only when hard acceleration rpm would jump up, my foot was completely off the gas. so anyone experience that on 2015 ex 6sp?

 

Mine does that as well. I think it may just be the gauge, I have not noticed any change in the sound of the engine when it happens.

 

That is normal for modern cars. it's to burn off the last of the fuel. just practice timing your off-throttle input.

if you get use to it, u can even use it to your advantage when the a/c compressor turns on to assist smooth engagements while driving normally.