[Danosborne6661]

Check your droop too.

At high speed, when letting off or braking you can get a lot of weight transfer to the front if you have too much rear droop which means tonnes of steering.

You check your droop like this -

First check ride height - Lets say 4mm. Then you lift the car from the front or rear bodyposts and it's the gap from the chassis to the floor WITHOUT the wheels lifting - Let's say 6mm. You then just minus the ride height from this reading which means you have 2mm of droop. I'd say 1mm of droop all round is a good starting point so you don't get too much weight transfer!

If you just changed your ride height from 4 dot to 1 dot that could of been your original problem too.

Just keep on top of the basics and your car will handle great.