Ok so I just bought the older style HKS exhaust (the one that doesn't have the can muffler, it has the oval muffler). I got the HKS4-1 header, RandoTech. hi flow cat and the HKS hi power cat back. It is deep but it is no where near loud enough for my taste. I'm thinking of either using a test pipe or eliminating the resinator. Which one will keep the deep tone but add loudness to it?? BTW i got a 98 dx d16y7. Any help would be great!