went from a h pipe with no cats to a x pipe with two high flow cats. how much power did i lose if any at all.the car feels the same but the noise level is half.
You probably lost a little, maybe 5-10hp, but i wouldnt worry about it. The noise reduction is from the cats, not the X. If anything you might have lost more torque due to the X pipe than anything.
i thought that an h pipe makes more hp up top but less torque down low, and the x pipe was vise versa; more torque down low with a few less ponnies up top???
Pro Chambers are nice, this is my first one and i've had plenty of Hs and Xs, i'd have to say i like the PC better than both. Funny thing though, is if you get a cross section picture/diagram of a PC, it's actually very similar to an X, only MUCH more flow between the entire area. Definately gives a totally different sound than either H or X.
MAC has a great sounding exhaust, some love'em some hate'em, but when you pair up their entire setup like i have in my sig, it flat out screams at WOT, and has a really unique "glub" to the idle. VERY little drone also, but that's mostly because i run above 2k rpm with my 4.10s.