Hey Thanks, But Mario is right though. With my setup you hear the engine more than an L series which contributes to the sound.
However, when I ran my L28 I had the same exhuast setup and to be honest with you I like the exhaust note better with the L28 w/ SU's better than the RB. Not only me though, but alot of my friends and family ( who are also into cars) will agree that the L sounded better.
I really recomend the Borla pro XS. It's moderate in terms of loudness, but if I could decribe it I would say it brings out the exhaust note at all differnt rpm's. Borla's been around for a while and they make nice stuff, the pro xs is a nice stainless peice and it's not something to tuck and hide. I learned the hard way and bought a cheapo muffer that broke and sounded like junk. You get what you pay for, so buy once, and be done with.