IVE BEEN DOING ALOT OF RESEARCH MYSELF ON THE SIDE EXHAUST, YOU SHOULD CHECK THIS SITE OUT THEY EVEN SELL LOW PROFILE EXHAUST TUBBING. http://www.drgas.com/store/product.php?productid=18&cat=1&page=1
you can use the stock skirts but exhaust wil sit even lower i had the side exhaust and it sucks skirts keept breaking spent $700 total fixing them 3 times after spending $775 for the system and you have to get them painted when you get them.