exhausts have to evit from the o/s of the car due to pedestrian safety!
side exit pipes can be very very loud, i did away with mine due to excessive noise (and it sounded shyte!!!! )
pics can be seen on this link somewhere.......
some pix of side exit pipe and some of my fabricated 3.5in stainless pipe.
http://photobucket.com/albums/0603/cossiekid/