Supersprint resonator or without ?

[cata4]

Hy guys

My car is a RS6 C6 .
For some time I have on the car, half of exhaust , from Supersprint.
I saw today that Supersprint have developed the rest of the exhaust (downpipes).

My question is what would be better , with or without catalyst?


http://www.supersprint.com/USP00auda6441.asp

[cata4]

I want to notice that the part of the exhaust , that is already on the car is without catalyst!


Opinions!?

[vangelis]

Without catalyst you will gain some HPs but no idea how much exactly, but you need custom tune ECU remap if you go cat-less.

[cata4]

Yes I have , from MTM.
But when I don it , the car was without exhaust !
My dilemma is , regarding to the sound ! :vgrumpy:

[cata4]

Thanks for all your help !
This is the last message on this forum !