But the cost is much less.

Maybe the Silvia's don't give as much as the RS4's / AWE's, but they sure are cheaper and easier to install!

I'm all about that.

Piggies: I'll give up 5/10 HP for $1,000.

Silvas: I'll give up ??? for $400 over AWE's.
Silvas: I'll give up ??? for considerable cutting and $200 with RS4's.

And I'm not convinced the Silvas ARE giving up anything. There simply isn't enough testing to say either way yet.

Reefer_Bob.

AIM: reeferbob

R.I.P. Matthew Ammon aka O.W. Kenobi