see i had the same problem, i couldnt pick the right exhaust but....there is a saying...go full or go home so i got a full sportisi exhaust (vr6) that not only sounds good, it also looks great and costs the same or less as a slip on that gives you basically just the sound.
i have the two brothers full and i love it. it can be a lil loud but hey loud pipes save lives plus the baffle will quite it down quite a bit. ive noticed a significant differance in power between 4 and 9 thousand rpm plus they have tons of options from carbon fiber to custom color tailends and fittings dont know too much about the other pipe............nothing like roaring through a tunnel or under a bridge crankin the gas!!