where can I purchase an X pipe for c55?
The cross over, and folks correct me if I'm not 100% accurate on this one, is to equalize the pressure and smooth out the sound.
I'm 100% true dual w/X and love every shocked look I get when I hit the long pedal on the right.
Looks like the letter Y. It is two pipes up by the engine and they beyond the 02 Sensors it goes in to one pipe (with resonators, etc). Towards the back wheels it splits off in to two short pipes again and then to the mufflers.
True Dual:
Looks like the letter H w/o the middle part. At the 02 Sensors it goes straight back to your mufflers with minimal bends (as few as possible for flow). The option is to put in the X pipe so it'd look like the letter H (sans the middle) and insert an X. Hard to describe using keyboard.
Where the cost comes in is with materials and the effort. If you are getting rid of one pipe and putting in two, there is much more "pipe", but much less weight due to removing resonators, etc. There is also lots of welding, bending of pipe b/c it follows a slightly different line than stock.
Hope that helps and maybe someone else can explain it better?
\ / front cats
I res pipe under the passenger seat
/ \ spilt to the muffs-
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