CUSTOM EXUST SYSTEM???

IM MAKING A CUSTOM EXHUAST SYSTEM ON MY DURATRAX MAXIMUM AND I WANTED TO NO IF MY SET UP IS NOT GOOD FOR THA MOTOR...IM USING 3/4 VIYNL WATER TUBING AND IVE BEANT AND HEATED AND THERE IS A SLIGHT KINK IN THA TUBE BUT ITD NOT COMPLETLEY CLOSED OFF AND ITS GUNNA HAVE ABOUT THREE OF THESE. IM THINKING IT MAY HELP THA MOTOR BY ADDING BACK PRESSURE TO IT BUT WHATS UR OPINOIN. SHOULD I FIND A NU SET UP OR LEAVE IT THA WAY IT CAME....? HERE ARE SOME PICS AND DRAWINGS. ILL FINISH THIS LATER I GOTTA GO TO BED......

WOW talk about bein wired.... i cant sleep but i gotta get up early tommorrow...any ways completly forget what i said about tha water tubing i got a new idea and i wish i could delete that....im gunna get some 3/4 electrical con-dew-it ( i dont no how to spell that) and cut v-shapes out of it, bend it then J-B WELD IT !!!!! THEN ILL TURTLE WAX IT WITH MY DREMAL TOOL AND IT'LL BE THE BADDEST CUSTOM HEADER EVER MADE, AND THA SHINYEST....HAHA. wow, what ten minutes of laying in ur bed staring out tha window will do for ya.....