the pipes are a lower type sitting at same level to each other the colour scheme was blue and white and the ecu box just says pgm , would that be correct , another thing is as the front barrel and head was missing the rear barrel and head has what appears to be thge letter F on the left hand side down at base of barrel , ive beeen told that there are a,b,c barrels and pistons dont always match up , can anyone help with this as i have no manual and my subscription on this site hasnt activated as yet , thanks in advance .