Flange connection: The plenum may have a flange that is bolted to a corresponding flange on the engine. The flanges are sealed with a gasket or sealant to prevent air leaks.
Stud or bolt connection: The plenum may be attached to the engine using studs or bolts. The studs or bolts are inserted through holes in the plenum and engine, and then nuts are tightened to secure the connection.
Clamps: In some cases, the plenum may be held in place using clamps or brackets that wrap around the plenum and engine. The clamps or brackets are then secured with bolts or screws.
Rubber mounts: Rubber mounts may be used to isolate the plenum from the engine and reduce vibrations. The rubber mounts are placed between the plenum and the engine, and they absorb and dampen any vibrations that occur.
It is worth noting that the specific method of attachment may vary depending on the engine and plenum design, and some engines may use a combination of these attachment methods.
