B-series Throttle Body Sizes
Posted: Fri Nov 10, 2006 5:06 pmInside Diameters (in mm)
b18c1 - 60
b18c5 - 62
b18a - 58
b18b - 60
b16a SiR - 58
b16a Sir2 - 60
b16a2 - 60
b16a3 - 60
b20b - 60
b20z - 60
b18c1 - 60
b18c5 - 62
b18a - 58
b18b - 60
b16a SiR - 58
b16a Sir2 - 60
b16a2 - 60
b16a3 - 60
b20b - 60
b20z - 60