Attention:
Size S is suitable for displacement of 1.0-1.6, exhaust pipe diameter 32-43 mm
Size M is suitable for displacement of 1.6-2.0, and the exhaust pipe diameter is 37-48 mm
Size L is suitable for displacement of 2.0-2.4, exhaust pipe diameter 44-55 mm
Size XL is suitable for displacement of 2.4 or more, and the exhaust pipe diameter is 56-85 mm