KOSO Mini 3 Air/Fuel Ratio Meter Honda Grom 125 (2014-2021) super73 Will fit almost any engine

Will fit almost any engine with 17mm screen filter housing

By selecting esters over other high performance synthetic base stocks and combining them with an innovative additive package

Direct bolt-on intake system that will allow your Honda PCX 125 / PCX 150 to breathe

Yamaha Zuma 50F / 125

KOSO Mini 3 Air/Fuel Ratio Meter Honda Grom 125 (2014-2021) super73 Will fit almost any engineKoso's Mini 3 Air Fuel Ratio meter is designed especially for Honda GROM 125 (2014 2021) using the OEM existing narrowband o2 sensor located on the right side of the cylinder head. Direct plug and play for 2014 2020 Honda Grom 125. Gauge mounts (sold separately) This Gauge will fit the 7 8" Koso Top Clamp for a nice clean installation. For those who are looking for a more simple mounting solution other than the top clamp, an Ultra Slim Mounting