If your engine cover has m performace, the air box would have been changed with the mppk and a flash tune and Your guages would read 400 hp/tq than you have the mppk. The guages are the best test.
the exhaust is stock unless you physically check.. the 335 has some nice burbles even stock (though low volume...). Mppsk is for the b58 motor (340 440)... that has a new full exhaust ..... it sounds like a beast compared (I just came from a 335 m sport to a 440 mppsk)
Quote:
Originally Posted by Dleos619
I have msport 14' f30 335i and the engine cover has ///M and also the intake says M performance I have loud bubbles and pops in sport mode downshifts... it sounds pretty bad as and pretty loud to where it'll turn heads..  ..any one know if the intake is a better one then stock..? or does it all sound normal for a msport.? or is something else done to it that I mite not know of... |