I went to the local speed shop and saw the apex international catback exhaust for the accord V-6. Wont this exhaust give way more power gains than the comptech? The comptech looks like just mufflers to me, but the apex had the long midsection with the resonator. But the apex is $700.

 

it will give you like 1 more hp.

 

What is international? Maybe you mean World Sports?? I would get a cat-back if it's only $100 difference, but then it's just personal preference! loud or quiet, big cans or small tips!
See my sig for my big cans.

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'00 Taffeta White TL w/NAV
-Weapon-R intake
-Piaa 1700x and Polarg M-14 bulbs
-white acura emblems and custom clear headlights
-Ground Control Coilovers
-Tanabe Hyper Medallion Dual Exhaust
-18" Racing Hart C-5 3-piece with P7000SS 225-40-18
-A'pexi V-AFC
My Ride

 

With the cat back you'll get like 1 extra pony to the wheels and probably be louder, if you like that sort of thing.

If you really want noise, poke multiple holes in your muffler and the downpipe. Thats what I did.