[Johnny D]

Anyone tried this? Searching isn't finding much. I am designing my future exhaust in my head. What I want to do is the following...

MMW Headers

Magnaflow 11385 in the location just after the exhaust manifolds (See below pic) I am leaning this way because this muffler/resonator is also one of their Tru-X perforated core mufflers. Not only would it work to be a resonator, but it would also act very well as an x-pipe in that location.
http://www.magnaflow.com/02product/s...=main&id=10389

2.25" dual pipe all the way back.
Remove secondary cats.
Remove stock resonator.

Magnaflow 11378 either in the resonator location (So I would be able to convert to M-tech rear and dual exit later on) or in the stock location.
http://www.magnaflow.com/02product/s...=main&id=10387

[jfisher160]

I will have to look for the thread or video on YouTube. Someone did the 11378 in place of the resonator which then they were able to do the mtech bumper to have to true duel exhaust like the 335i. This is what made me pick the Magnaflow exhaust, I saw his video and wanted to be able to do the duel exhaust later.

I will see what I can find for you. his sounded great. So I figured with our headers it would be alittle louder.

Here is the video I went off when i was looking at Magnaflow Exhaust and Duel Exhaust for our car. He did 2.5 single in and 2.5 duel out. They also make a 2.5 duel in / 2.5 duel out which i also looked at.

http://m.youtube.com/#/watch?v=vj_qi...%3Dvj_qihNJoYQ

[Johnny D]

I hit up the exhaust shop today for a quote. The original plan wont fit. So I'm looking at $675 for a non resonated x-pipe, a 5x8 dual in/out muffler and mandrel bent pipe front to back. Expensive

Headers go on next week and exhaust the following Tuesday.