Universal Fit 4-1/2" X 48" Straight Pipe W/ Clamp for TractorsOne New Aftermarket Replacement Straight Exhaust Pipe with Clamp Universal Fit for Tractors This universal fit straight exhaust stack pipe is a direct replacement for vertical exhaust systems on a wide range of agricultural tractors. Measuring 4 1 2" I. D. x 48" long, it channels exhaust gases up and away from the operator and engine compartment. The pipe ships with a clamp for secure installation at the muffler outlet connection. This size is