intake pipe issue

[matping]

mk3 16v .     guys got a issue when i rev the car up the air intake pipe sucks itself  shut  and starves the car from air coming in from the air box   its wierd but i spotted this with the bonet up !  ive had this issue a while  whenever ive been driving the car  would limit at 3000 revs and obviouslly this is the reason because when i get to 3000 revs thats when the air intake pipe will be closed untill i let go of the throttle

[Rmachines]

Either the air filter/air box feed pipe is blocked, or the pipe has gone soft and weak,  inspect air filter housing, then replace pipe.