What Is This?
 

hey guys im just wondering to what this actually does??? some good horsepower gains...

http://www.takakaira.co.jp/performance/main.html

go to "HKS"

than "Turbo"

than the last one "Actuator Upgrade Kit"

theres one for a fc3s?

Its your wastegate actuator. Stiffer spring higher PSI = higher HP .

Plus with adjustable rod you can control how far for it to open or close

Engine: 13B-REW

so it will only work with the rew?

Nope , it works for our turbos ( s4-s5 also ) but why not just buy a boost controller ?

lol so its the same thing? haha i got a profec b spec II