where it hooks up.. remove both aluminum belly plates... start from the rear, taking each piece off, until you get here... you need to reuse the factory sprung bolts off the cat.
Tsudo did a pretty good job, theres actually alot of room under the 9thGen civics.
what really surprised me was the pipe coming from the cat was as big as the 2.5" Tsudo exhaust. (right)
driving it was nice too, not too loud, i have a modified airbox with a K&N filter, its alot louder in the engine bay compared to stock.
i was always wondering how it stacked up to the SI cat-back Tsudo exhaust, i can guarantee its not as loud...
its quite abit louder accelerating, but once at highway speeds, not too bad, no annoying drone...