For my 16v, I am wondering what type of springs I should use after I replace the sls. What is the difference between 2.3 8v and 2.6 springs from eibach and H&R? Will both work on a 16v? Will the 2.6 springs be stiffer or also taller? Does anyone have the spring rates available and the weight differences and distributions for a 2.3 8v and 2.6? Thanks.