I did not find the Konis to be harsher than stock on my GT so they should be fine on a GXP. I'm sure it helped that I ran rubber strut mounts instead of poly. Also keep in mind that only the rebound is adjustable on the Konis. This is so you can pair the shocks to your springs not so you can adjust ride quality. I always ran full soft. If anything they improved ride quality because the body motion was so well controlled.Can those Koni yellow adjustable shocks be set softer than FE3?
My 09 G8 GXP came with FE3 shocks, but they aren't available anymore and I need to change them as they are worn out. I liked how G8 with FE3 rode, and do not want to make it harsher