New pipes coming out of the OEM muffler have to be bent to match the holes on the diffuser, then weld the tips to the pipe. My local exhaust shop charged me 65 buck to do the entire thing.

Thanks for the Ebay Links, did you adjust the tips to fit the cutout on the diffuser, or was the fitment dead on? I am concerned if the current tip would be in the center of the 4 pipes or on the outer ends of the four pipes.

http://www.ebay.com/itm/171183639097...84.m1497.l2648


http://www.ebay.com/itm/BMW-F30-NEW-...365d0c&vxp=mtr

Hello Sir,

Can you please provide details on where to purchase the quad exhaust tips and diffuser, I love that setup.