It is item 10 in the diagram in the last pic.
Genuine Suzuki with dating collets (See pics).
Part No.59240-36211
Alternative part numbers
59240-36210
59240-36212
c.400mm long (See pics).
Check my other items for the matching rubber/hard pipes.
Do not go for a continuous stainless aftermarket pipe,
its cheap and tacky and will not look right.