I took the car in for a 5000 km oil change today and chucked it on the dyno to see if all is well and it still managed to get 91.8KW ATW which is not too bad of an effort as the 1.8 has 92 KW at the flywheel and a SP20 98KW.
I was hoping for a little more but im happy with the end result, and it was hot, stuffy and humid when we did it.
My 1.8 FP-DE VS FS-ZE
Comparison of two different SP20 FS-DE VS FS-ZE