about Agency Power exhaust and ECU tuning

[dragusu2001]

hi guys i have a 2008 BMW e92 M3 and i want to change the exhaust
what you think about Agency Power exhaust sistem ?and what ECU tuning to choose?
thanks

[BMW-PRINCE]

Do your research on the tune. Call each tuning company and get to know them and do what feels right.
tuners:
1.GIAC
2.ESS
3.Gintani (OE TUNING)
4.Powerchip
5.Dinan

Look into what others have to say about the tune too, and make sure you dont have the locked DME.

I personally ran powerchip for 1 year and it was flawless. It just EATS oil lol