Bintelli Beast
 

I have a 2021 Bintelli Beast 50cc with a 100cc bore kit. I would like to continue upgrades. Intake, exhaust, carburetor etc. I'm trying to find a new intake and air filter. Any recommendations? Also, I'm not sure what the specs are. If I purchase an intake for a bn139qmb engine will it fit my scooter. I'm a beginner. I need all the help I can get.

I would contact the people at Bintelli. The 50cc engine was called 139QMB but the people at Bintelli label theirs with a BN designation.