CMI tailpipes need to be changed, any sujestions
 

I have a set of CMI dry pipes that need to be reconfigured for my boat. The person I got the from had the flanges that connect to the header cut and turned 180 degrees so that they where to go over the transom. I need them switched back. Also will need them lengthened three or four inches because they barely exit the transom. Probably need a angle put in them also so they will go straight out the back and not angled 45 degrees to the waterline. Who should I get in touch with to do this work in a timely manner as time is of the essence. (Of coarse it always is)