Someone know where i can find these 2 things? I really don't want to spend more than 400 bucks on both of them. Do they make much of a difference? Are they worth it?

 

Skip the intake, go with OSCAI...

 

i have both stillen intake and y-pipe..and yeah, they are worth it...you can either call Stillen directly or go to a local speedshop and have them order them for u..

my intake was just...uh...ok...you don't have to get the Stillen Hi-Flow unless u want something legal(C.A.R.B. pending right now..for the 5th gens).
you can either go with JWT Pop charger or just buy a K&N filter and make your own intake.
as far as the Y-pipe, yeah, it's worth the money.
i think the intake is better when combined with y-pipe.