They will both run you about the same ($500-600). Personally I just went with custom 2.5in pipes and otto mufflers ($50 for pair shipped...ebay). I also bought some pre mandrel bent pipes from jcwhitney and just took all of it to a muffler shop where they welded it all together. Also get an X-pipe from ebay. Only reason i didnt go with hks hiper was because they wouldnt have cleared my bodykit. Anyways... I love the sound of my car... very exotic not too loud but deep. I was afraid my car was going to sound like a honda but was plesantly surprised. Also check classified cuz they usually get some good deals on there.
