silverstone_S2K

im going to be getting the invidia dual 70mm catback exhaust along with the 70mm test pipe in about a month....

i waswondering which would be better to get along with those two exhaust parts ...

either:

e-manage ultimate

or

Apexi VAFC II?

I see alot are using the VAFC but let me know what all you think would be better for horsepower gains ect.....

cheers,

paul

sparrow

emanage