Hello new to community. We have had Subaru’s for over 20 years now. Our 2010 forester had thrown a mis fire cylinder 4 code. We changed plugs and wires check engine light is gone but car is running very badly. First no check engine light now, can’t rev past 4000rpm in park or neutral, slow take off, not shifting right, we hear a slight whooshing noise when driving. Shifting 1-2 are very slow at right rpm but 3-4 tac to 4500 then shift. Can’t seem to get to 50. Transmission fuel is full,clean, and no smells. Thanks for any info we are at a loss. If you need more info I will do my best to answer.