I bought a SuperTrapp muffler from a member here a while back. I told him not to bother sending the head pipe because I had lots of those kicking around already. I finally go to install the muffler, and there's no way this thing will go on my SX...no way. So now I'm wondering if the muffler is for some other machine, or if the head pipe has to be a SuperTrapp one to allow the muffler to work on the SX. Was I that stupid? Is the SuperTrapp head pipe for the SX different from the stock head pipe?