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I'm about to move forward with putting on axle backs and have also been toying with the idea of putting on an X-Pipe. Any experience out there? Does an X-Pipe change the sound by allowing more volume through? Does it really provide any advantage?
Many folks report it results in a raspier exhaust note. I've heard claims of minor HP gain but I doubt it's anything noteworthy.
Same here. Personally the reason I plan on sticking with H is to maintain a deeper exhaust note, I purposely bought the exhaust I did because of it's rumble rather than scream.
I like a X pipe. It has in my opinion a smoother more sophisticated tone more European. I find the H pipe more staccato the pulses from the right and left are more separated while the X has both pulses coming from both pipes at the same time. I don't find raspy or the H pipe deeper. More popping and explosive rumbling tone goes with the H pipe.