Hi Bat. The Yamaha XT / TT 350 Inlet manifold's fit. The only issue is that you'll have to drill and tap the R/H manifold for the vacuum hose.There are a few different supplier's though , either original / supplier in the UK that sell's good quality stuff / or the cheaper ones off ebay. The ebay ones are very cheap , i think made in China , but i personally wouldn't use them , i want my part's to last and not cause issues down the road. I had a set of manifold's made up for my SRX ( the ones out of the UK ) , but a contact in the USA found me two original 51Y manifold's so i used them in the end.