Twin Bigbore Exhaust Pipe + Mufflers 125cc 150cc 160cc PITPRO TRAIL DIRT BIKE. Brand New Twin Exhaust Bigbore Pipe + Twin Mufflers PIT PRO TRAIL DIRT BIKE THUMPSTAR QUAD BIKE ATV. DIAMETER OF THE MUFFLER FLANGE. DISTANCE BETWEEN THE ENGINE MOUNTING (CENTRE HOLE TO CENTRE HOLE). This item is in the category "Vehicle Parts & Accessories\Motorcycle & Scooter Parts & Accessories\Other Motorcycle & Scooter Parts & Accessories". The seller is "sparepartsonline_2021" and is located in this country: AU. This item can be shipped worldwide.