This intake spacer can be used when upgrading to larger carb for GY6 50 upgrades to cylinder and head like a 50mm to increase gas and air flow plus it gives it a boast. The spacer can be flipped for stock use or high performance use depending on size of carb you are using.
You must use this when upgrading a GY6 50 engine that has been modifed with 24mm carb on a 80cc or 85cc head.