Hello, I own a 1994 3000gt and i am having some problems with exhauts. I have been debating either a borla cat-back which has two high flow mufflers right by the cat with 2.5" piping and then it splits to 2" piping or just getting 2 apexi n1 style mufflers and getting 2 1/2" all the way to my cat or 2" or 2 1/4" or whatever would help not lose back pressure. There is the problem. I dont know which one i want to do. I was as loud as i can get it and whne i saw that i want it to be noticable not too loud but i want a huge power gain also. I hear great things about the borla but it is quite expensive. Can anyone help? Thanks.