New LC owner and i am enjoying every mile. 2000 LC w/ only 80k miles and in my favorite color, riverrock green mica. I have search thru the post and appreciate everyone's contributions but wanted to add yet another exhaust question. I have been looking at the borla cat-back exhaust as I could not find any full systems. Perhaps that is just weak my web shopping skills. Could someone tell me what diameter pipe is used on the Borla and whether it only replaces the exhaust from the last cat back? I believe there are more than one cat and was not sure if the exhaust would omit any of the cats. Thanks.