Who has the Curtis Sparks system on their 400EX?

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Sep 16, 2001 | 12:58 PM

RAPTORAZ

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I'm thinking of putting the X-6 system on my mostly stock 400EX. I'm planning on a big bore later on. Anybody have any experience or opinions on the X-6? How about the X-4? Thank's in advance.

Sep 16, 2001 | 07:52 PM

LilManOn400ex

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how loud are these pipes? ive heard they r really loud im thinkin about buyin one.... whats the differance between the x-4 and the x-6?

Sep 16, 2001 | 11:02 PM

RAPTORAZ

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The X-4 is for stock to mildly modified and the X-6 is for highly modified and big bore's.

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