considering an X pipe.

[Big Red Monster]

I already have a true dual exhaust with flowmaster 40 series mufflers, i want to get a little more sound out of it still, would an X pipe make it louder or not really?

 

[Expeditionary]

cutting out the 40's and putting glasspacks or straight pipe would lol.

I just got back from the shop where i had them cut out my stock muffler and replace it with straight pipe. No popping, just clean, deep sound. BUT you already have duals so yours would be crazy loud

 

[walnuts4x4]

an X pipe would smooth out your exhaust... since true duals are seperate the X pipe would make the exhaust flow more continuous since the two streams of flow would equalize... my next exhaust will be the same as I have now just add an X pipe

 

[toms89]

X pipe is better for hp vs h pipe. H-pipe is old school. X pipe is the new thing. As walnuts said it will help smooth out the exhaust flow. It is quieter than h-pipe though. Makes older 5.0's sound kinda like a v6.

 

[tonydiv]

That's what I always thought. But on Gears, Stacy went over to Heartthrob exhaust, they showed dyno results of a 12 or 13 hp difference between an H pipe and X pipe on some new car. Their point was that every application is different and you can't just generalize.

 

[Big Red Monster]

if it makes it quieter im gonna have to avoid it then lol. I dont have an h pipe my exhaust is a truel dual from the cats back the crossover pipe was eliminated when i put the setup in

 

[tallsville]

put in an xpipe you will be happier. here is a pick of both x and h And a description from the person who put them on his vettes

Compare the two. The H section is joke. The size of the holes into the "H" are

about 0.7" or about the diameter of a nickel. For good or bad, the X-Pipe is

free flowing nearly full diameter from either inlet to both outlets.

http://www.sfba-corvette.com/z06mods.htm