I lost the plastic ring type oem adapter the one goes on a MAF and then it fits in/on the air box where we connect those three air vacuum hoses and the other part of the maf goes on the big air box where the air filter is. i was gonna remove my berk intake to put the factory air box back but it cant be done without that round adapter. if anyone know what that thing called or got a spare one please let me know. i am realy in need of one and willing to pay for it right away. i have no idea if dealers carry one. thanks.