Sounds great!! I have the same muffler on my 07 C230 with a resonator delete.

I got a 96 328i right now and going to swap that over. Just the long block, harness, ECU, and EWS to swap over right? Do i need to switch the key cylinder into the 328i lock or can the 318ti still work? And If i do want the secondary pump, i have to mount the battery in the back too right? Or I can just remove the pump and have the battery there like in the 318ti? Will i need to change the differential, half shafts, and rear brakes into 328i? I got a 318ti msports with LSD i believe. THanks!