id have to say that it was well worth the 150 bucks. big differences in spooling time. almost no lag. boosts much better than the s4 turbo. recommended to all. with a walbro 255 pump and stock injectors, whats a safe boost to run on a s5 turbo on a s4 engine? id like to stay conservative. maybe 10psi? and also when you ditch the twin scroll system wheres the vacuum source you have to cap? anybody have pics?

 

Yea check out FC3SPro and look under the how to's section.

hmm S5 turbo sounds a little more appealing now