2010 IS350 fsport ride quality

[Don Brisbane IS350]

Hi - hope this hasn't been covered already. I have had my 2gen IS350 Fsport for four years (My first & only Lexus, and is the best car I've owned in the past 50 years!) but the front suspension seems to be getting harsher, and there is a slight "coarseness" felt through the pedals & steering wheel. 115,000km. Running Pilot Sport 4 tyres, but these pre-date this issue. Need diagnosis, but hard to find someone I trust to give it. The car hasn't sustained any damage. My gut feeling is shock absorbers and/or a damaged (on the inside) wheel from potholes. Any thoughts, or a suspension guru in Brisbane northside?

[Atlantis]

I wouldn't think it's the tyres. To be honest I just got some PS5s installed, and they feel slightly harsher than the PS4s although they are quieter.

[bazzle]

Bushes can wear and compress. Tyre pressures should be around 38 all round.

Go to pedders and pay for a run on their test bed. It will show any bush, shock or component wear.