An exhaust
system having a
pipe for conveying exhaust from an engine, the end of which has an outwardly-protruding lip; a first
pipe flange having a hole large enough to allow the lipped end of the
pipe to pass through it, and a recessed shoulder adjacent the hole; a collar, configured to releasably encircle said first pipe, to abut with the recessed shoulder at its outer periphery, and the lipped end of the pipe at its inner periphery, thereby preventing the collar and lipped pipe
assembly from passing through said hole; and a second pipe
flange configured to attach to said first pipe
flange to connect a
tail pipe to the first pipe, and to hold the pipe, flange and collar
assembly together. The invention also provides counterweights for counterweighted lift trucks adapted to secure such exhaust systems, and methods of fitting such exhaust systems.