With the different,wider, tyres fitted to the ARP4 22psi may be ok but on my car with the standard Plus 4 tyres 22psi it too soft and the car feels very squirmy on the road. 24psi is the minimum I use and I am much more likely to use 25psi and even 26psi when I have a heavy load.

There are a lot of debates on this subject but it comes down to what feels right for you.

Peter

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