I would like to thank mark from massive mods for taking care of my needs in a fast manner. I have been bitching for weeks[at least] to get parts for the go tec engines. russ jones, our U.S. distributor? emailed way to many times. ZERO HELP. emailed mark, week later have parts. thanks again. I will definitely be back to do more business. NOW THAT IS CALLED COSTUMER SERVICE FOR SURE.