IPE F1 Performance Line Full Exhaust for BMW F30 320i 328i Baan IPE F1 Performance Line Full Exhaust for Mercedes AMG GT S IPE F1 Performance Line Full Exhaust for Mercedes AMG GT S IPE F1 Performance Line Full Exhaust for Maserati Quattroporte. The IPE Performance Line exhaust is the perfect upgrade for the BMW E90 E92 335i. The iPE Performance exhaust awakens the sporty soul of anyone behind the steering wheel, delivering both power and dynamic valve control to the driver. The remote control module of the IPE Valve controlled muffler let you enjoy incredible sound, but at the same time also make it possible to shut down any vibration or drone frequencies in the interiour when desired in order to enable an undisturbed conversation and comfortable drive. The muffler internals of this exhaust for the BMW E90 E92 335i were individually designed in order to perform with the Valvetronic technology. Each IPE product has its own unique sound and performance to break out of the ordinary.