I had a complete header back exhaust put on my car a couple of weeks ago. The exhaust guy reccomened not to use an H pipe unless I was racing a lot.
I don't know from personal experience but a friend that does told me an X-pipe would quiet the pipes some. I've read there's a tiny pick up in HP. So, when I saw a 2.5" scratch and dent X-pipe at Carlisle for $20 I bought it, not for the HP but in hopes it will tone down the exhaust a little.
X-pipe is for high rpm like NASCAR. H-pipe is more for low to mid rpm like for a street car. If you're running 8000 rpm for hours at a time go with the X-pipe. If you stay around 4000 rpm go with the H-pipe. I like the sound of an unbalanced exhaust, it sounds more old school.
No, you don't need a cross-over pipe. It will give you better mileage, and a tad more torque if properly installed. Yes you can get along quite nicely without it.
Here's some interesting reading on the subject. http://www.popularhotrodding.com/enginemasters/articles/hardcore/0505em_exh/index1.html What I take away: small noise reduction and small HP gain.
That's about right. I have an X-pipe and it's a bit more "mellow" sounding than glasspacks ought to be. No less aggressive really, still sounds good, just doesn't sound quite as loud as "true dual" glasspacks usually do. Doesn't sound like a single pipe either... It's hard to explain, kinda has its own sound. I do get lots of positive comments about it though.
they just ballance out your exhaust. not a 100% neccisary but it's one of those things that can make something good a little better. I have a H-pipe on my exhaust and coming from true duals the sound is just a little more consistant, where the pattern was a little off before (4,2 and 7,8 in the fire order), now some of the two in a row sound gets shared to the other side...
Re-awakening this thread rather than starting a new one. Getting tired of my Flowmaster Super44 drone. I am sure I can tackle installation of an H-Pipe in my garage. Where in the length of the tubes is the best place to install it to cancel out my drone (please, no difficult mathematical forumulas!!!!) I think I will make it out of 2 slip-on pieces so I can still separate my two exhaust halves for easy removal/installation.
Best way i've heard this described is that an H pipe is more muscle car sounding and an X pipe is more european sounding....I had an X on my '05 GTO and loved the sound....Mellow and not obnoxious...Kinda more high pitched than the H
I don't think I want the X on this setup, just because I like to be able to yank my exhaust off one piece at a time, and if I weld a slip-on chunk to each side, I can still take it apart easily. I don't want to have to use the "spray-paint and run it wide open" method to find where to install the H, since I am not at the track and don't need a speeding or endangerment ticket right now. So, who has one that seems to work, and where along the length did you install it?
