HALOED CAT?
My friend hallowed out his cat (on a 1994 civic cx with a b18c1 in it). I definately can't say it hurt his performance, it probably added maybe 2-3hp, but the sound did change a LOT. Intead of a deeper tone like he wanted, it was much more of the typical "rice tone" he did gaina bit of power but in my opinion it would be much better to just go with a high flow cat (random tech.)


