how does your car feel? a gt35 is going to spool super slow on a 2.0 liter anyways. so yeah if you don't like the tune get someone else to do it. what I know about the ej207, is it doesnt like alot of torque down low anyways. you could probably do more boost but you run the risk of lifting the heads after like after 28ish on stock head studs. so choose yoru poison. if you want to keep your engine running, dont go super crazy and try to push it to see what it will do.