Klander-They are longer springs. These are from the NEO TNT. The rear red springs are a bit longer than the front and when compressed feel a bit stiffer-not by much though. However installing them directly into the stock settings, the rear is now more stiffer than the front. I'm still getting use to the horizontally mounted droop screws on the front. I prefer the standard position better, however I'd had all good setups with this car. I'll give it a try today when I can and run the lola body.