I am going with Flowmaster mufflers (I have used them on every vehicle I have owned). I am not changing anything else but maybe the tips. I was wondering if anyone here has used the 50 series on their GXP. I cant have the mufflers as loud as the 40 series but all I can find on youtube is the 40's and 44's in all their incarnations. My goal is to have a throaty exhaust that wont wake up the neighbors when I start it in the morning (I work midnights) but I want something I can hear and feel at idle and is aggressive at throttle. One last thing. Wife wont ride in it if the interior resonance is to much.
Flowmaster says the 50 series is mild yet noticeable.
Thanks