This auction is for a newly manufactured  boostperformance.co.uk tensioner sleeve for the 24v Cosworth BOA engine.  The sleeve clips onto the metal tensioner arm as in the photograph.  The metal tensioner arm isn't included in the auction but I will include a new timing cover gasket as well as a new water pump gasket.  I can be paid by postal order, bank transfer, cheque or a paypal payment (made as a gift).  Happy bidding.