I am just curious who is running the whole Hks setup? Or possbily another downpipe or intake. I definately want to go with the 30th anniversary exhaust but not to sure about the downpipe and rs. Curious as to real gains, sound, cel's with all.
Did the search. Pics to.

 

I have teh RS intake, HKS downpipe, and HKS carbon-ti cat back on my car. I still have the stock cat on there, but other than that I don't have any complaints at all.

I did the cat back first and I could tell a bit of a jump it power. The car definately sounded better. I then put on the downpipe and noticed the car seemed to have a bit more top end and spooled a bit faster. I put the RS intake on a couple weeks ago and I couldn't believe how much it helped the car in between shifts. There is no lag at all in between shifts. I always seem to have a problem with it bogging, lag, or just falling on its face in between shifts. Might of been me, but not sure.

So far, I am completely happy with everything I have installed. The car seems to have more power and is even more fun to drive now.