Koso Wideband | Air/Fuel Ratio meter by Koso.This nice backlighted wideband air/fuel ratio meter will give you precious informations on your engine. It will allow you to tune more precisely...

Koso X-2 Boost Gauge with Wideband AIR/Fuel Ratio by Koso.This X‑2 multifunction unit is a great tool for all horsepower enthusiasts that are upgrading their engine with turbo or supercharger....

Koso XR-01 Speedometer by Koso.Thinner and lighter than its previous version, the XR‑S speedometer, our innovative XR‑01 speedometer most importantly features a larger, higher quality and easy to read LCD...

Koso XR-01 | Speedometer | Off-Road version (LN-01) by Koso.LIKE NEW This XR-01 speedometer was used in a video and photoshoot. The meter was connected to a simulator has never...

Koso XR-01 | Speedometer | Off-Road version (LN-02) by Koso.LIKE NEW This XR-01 speedometer was used in a video and photoshoot. The meter was connected to a simulator has never...

Koso XR-01 | Speedometer | Off-Road version (LN-03) by Koso.LIKE NEW This XR-01 speedometer was used in a video and photoshoot. The meter was connected to a simulator has never...

Koso “D” Type Bracket | for 48-55-64mm meters - 48mm by KOSO.

Koso “D” Type Bracket | for 48-55-64mm meters - 55mm by KOSO.

Koso “D” Type Bracket | for 48-55-64mm meters - 64mm by KOSO.

Koso “U” Type Bracket | for 48-55-64mm meters - 48mm by KOSO.

Koso “U” Type Bracket | for 48-55-64mm meters - 55mm by KOSO.

Koso “U” Type Bracket | for 48-55-64mm meters - 64mm by KOSO.