I drive a cb7 and I have a Tenrai exhaust. It's just the rear section and everyone i kno tells me it sounds great. It's a deeper sound but doesn't help with power because I decided the F22 wasnt the best motor to build. If u want a full exhaust, or cat back, i'd go with a RS*R Exmag catback, which I heard and sounds great, or other companies such as Apexi, Skunk2 etc. Look up video clips of different exhausts and see how you like the sound. Good luck bro!