Morning, I find the suspension in my mk4 a bit un responsive and easy to under steer (as in front end ploughing on not me not steering, is there anything like uprated springs eg off the 2.0 SRI DTI will they fit ? i would expect that anyone using a Astra DTI for towing would have upgraded the springs, As the car is under warrenty would changing the springs invalidate the warrenty ? im not looking to lower the car just get some tighter handeling any advice would be appreciated.