For carburetors with Non-Removable adapter.
DRZ400 Billet Aluminum AirBox / AirFilter adapter for Keihin FCR-MX carburetors 37MM-41MM
16mm added length to carburetor
26mm total length
You will need to file the small lip of the back of the carburetor fitting in order to fit this adapter.
A good adhesive or epoxy is recommended to prevent movement that will lead to air leak.
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