[BMWZ4RIDER]

I have looked everywhere at Rear Diffusers. It seems that 3D is the only product offering available without changing the full bumper covers.

I am looking for a nice Urethane or would prefer a CF Rear Diffuser that will work with/fit over my stock 2009/ NON M bumper and for use with the stock/base dual exhaust system.

I do not want nor need to pony up $4,500 for a Quad exhaust nor upgrade to the F and R M style bumper covers for a rear diffuser.

Has anyone ever used one of the QUAD Diffusers by adding on via welding a 2nd exhaust tip to the stock muffler to act as a fake tip?

I would rather NOT but I am tryng to think out of the box with a sanitary upgrade without breaking the bank.

I know that these cars are very limited which I love, but even so the upgrade product choice's are so limited and so costly, its disappointing at best. I guess you gotta pay to play.