Round Baffled Tractor Muffler - 51mm In /Out

TR400 - Round Baffled Tractor Muffler Centre / Centre 90mm Case 400mm long muffler - oveerall length is 1100mm 51mm In / Out With Stubs Top Quality Aluminised Steel with Double Skin Baffled Design Designed to replace OE mufflers with similar low decibel noise readings. Common design is the triple flow with 3 tubes being perforated, louvre or plain. # 1 tube is the inlet, # 2 is the bypass and # 3 is the outlet. Oval triple flow mufflers come in offset/centre and offset/offset configuration.Round triple flow mufflers have 120 degree spacings called PB and DB. Some baffled muflers also have a small bullet (bull tube) built into the outlet tubeOE design baffled design tend to have extra plates and chambers with tuning tubes Centre/centre baffled mufflers are more OE design with plates and chambers.