Hey guys sadly my e46 is falling apart and its time to get a newer model. I have an 03 330i sedan with H&R racing springs, K&N 57 series intake, magnaflow catback, and HID fogs. I was wondering as I transition to my new E90, will I be able to use any of these parts? I'm guessing I can use the HIDs, but I don't know the difference in the air delivery systems or the spring setup. I know I won't be able to use the catback but any suggestions for a cheap decibel raiser on an e90? Thanks for the help, sorry to see my e46 go.