The FC420V 14hp Kawasaki engine on my Exmark 52" TurfTracer finally died. I bought a 20hp FH601V, CS-04( John Deere) Kawasaki engine to replace it. New engine bolted right up to the TT deck. I need an exhaust system for this engine. Exmark wants $300 for the complete system. I need ideas for less expensive maens of muffling this engine. One thing I thought of is making individual pipes for each cylinder(exhaust port faces deck at bottom of cylinder) and putting on inexpensive mufflers from Tractor Supply. Problem seems to be finding 1" id exhaust pipe for sale.Help!!