Looking to get an exhaust system. I've always been a fan of Remus but I'm stuck on the decision. I'd like some opinions. I have a 2008 550i mtech.

 

I would recommend the RPI system. on the dyno, the RPI system shows a gain of about 7-10whp.

 

RPI..
Very throaty sound, great looks and workmanship for less than $1K. Highly recommended...

 

For me In this order
Remus
Dinan
RPI
Go to yourtube and see what do y like

 

I picked up a used rpi powder coated black search my posts for a write up and pics. Downside is drone under load auto trans in D till 2k rpm unless you make it downshift. I want to try and make a decent hd flyby video, since there really aren't any.

 

For me In this order (as far as kits go):
Dinan
Remus
RPI