I actually have a stock intake on there. I dont have anything aftermarket for that. See some parts react different with eachother. Throw on only a catback and u get crap for your money. A shorty header too and ur doing alright. but a race header and a cat back is a whole other story then even just a race header. depends on the catback too. Just how the vaccum and flow of the motor works. But yes if i dont get their intake i will probably just add a drop in filter for $40. The way i see it, id rather get 4 or 5 whp from a filter then spend $200-$300 on a CAI for 8 WHP. I have run the car with the bottom of the box off. For fun i zip tied the filter to it like they use to do with all the autocross cars in stock classes. Its a difference u see ESPECIALLY with the SC. PLus that Bi&$@! is screamin and people when u tap the throttle. Nothing funner then hearing 2 mustangs rev at a light at eachother and u sneak up in the rear and let um have it and WOOOT! gets their heads turning
AS for other tires i would love to, but i would rather spend that money on my M4 carbine

down the road i will probably get some wheels and tires if i do that to rotate them off. Thats what i want to do with my crx too. You know, its still sad to say my $40k investment Civic SI will still gets its ass beat by my N/A Gsr crx in every field... Ohwell atleast i own them both...