So I'm getting an M5 rear bumper within the month
and I'll need the quad exhaust set up, and I read many thread, it seem like it will set me back about $700 to make this conversion
I was checking out Google Image, and came cross this picture, can't we set up something like this for our car with a magnaflow dual inlet/outlet exhaust
this doesnt look like it would cost no more then $300 parts/install?





any advice would help.

 

The setup will definitely work. I have a 2 into 2 muffler in the middle and splits to quads, but on the right side I have a single muffler to muffle the sound just a little bit.

I can get the muffler for you for $117 shipped. Here is the link:

http://www.magnaflow.com/02product/shopexd...ain&id=7697

http://www.magnaflow.com/02product/shopexd...ain&id=7695 (shorter version) = louder

 

Thx for the quick reply, as always...
how much will the single muffler cost... additional to the $117 (20")

also, at cruse, how loud is it?

 

The single right muffler will be $83 shipped.

http://www.magnaflow.com/02product/shopexd...ain&id=7660

The exhaust it pretty loud if you delete all your resonators.

You can go a single setup and get the RPI setup:

https://www.trinityautosport.com/merchantma...products_id=237