I installed the Magnaflow CatBack on my 10' Sport
and was under the impression the outlet pipes were 2.5" because that's what the CatBack kit has.
... I guess the stock pipes are 2.25" though, my bad.
You'll love the Magnaflow sound, nice deep rumble at idle,
with that hefty Growl at wide open throttle.
(5"x11"x22" muffler, no resonators, 5" Polished tips) <click pic for video clip>