tom@aptuning
VW Service & Performance
Yes, definitely the car pulls much more consistently and smooth up top, and harder. In the higher RPMs the stronger springs help close the valves faster to help maximize power up top. I'd say its definitely noticeable. Feel like the power is there longer where as before I would feel my 5th gear was pretty lacking. And yes, use it or whats the point. ;-)
Edit: Might only help up top when pushing the car in high boost/high power applications....prob no benefit up top to a k04 car.
Just curious where that info came from? Big turbo cars are far less likely to have spring issues related to power/airflow, where as it is known issue the exact opposite on a k04. Ive never seen a big turbo car with a valvespring issue on a FSI/TSI .
Also interested in what car is that in your signature?