any info on trackside pipes..

[97mxz670]

i recently purchased a set of trackside pipes for my 670. and i tryed to find the manufactor or any info on these pipes.. no luck any info would be awesome..

 

[lew]

well all i know is my 98 mxz runs 370 clutch and 350 mag. but my 95 mach 1 runs 420 mag and 430 clutch. start fat as hell until it falls on its face and then work your way down from there. if you have to get something huge. but just make sure you do it right i redone my mach twice before i figured it out....