Well I have my CAI, pulley, belts, ignition, plugs, etc. all in a box and ready to install, but I want to put the exhaust on all at the same time. I'm ready now to buy the Magna flow for my 2005 S. Anyone know who has the best price on the cat back system?

 

We can get you one, but I suggest finding someone that has a Magnaflow and taking a ride. The Magnaflow is usually either too loud or drones too much for most people. Also the Stratmosphere/Milltek will make more torque.

 

I want to see a 3rd party dyno that proves the more torque statement. Back pressure beyond header design is a myth.

But it is a loud system.

 

I'm not saying the Stratmosphere is a bad exhaust. It looks great. I love the tips on the R56 Mini version.
Personally I don't like the sound of our engine without significant sound/frequency suppression. If I were to get something beyond the one-ball I would go with Strat or JCW.