hi lads i have a 1998 a3 18t 150 bhp agu engine basically cars smoking when started for few mins so took it to a local garage and done some checks they reckon its turbo related maybe exhaust side seals are fukd so thinking how hard would it be to get a k04 of ebay ive been looking on this forum and guessing i need a s3/tt exhaust manifold just wondered what else i need and is it worth it any help is very gratefull as got mot in october and want to get it sorted for then if possible thanks