How much power should i expect to have when i get my Utec tuned at Subaru Specialists? (2005 STi)

Power Mods: Invidia headers and Catless Turboback; Perrin FMIC, Big MAF Intake, 816cc injectors, bov, pulley; walbro fuel pump; aem fuel pressure regulator; Turbo xs utec; Sun auto hyper voltage stabilizer and grounding kit; and Greddy Profec II EBC.

 

91 octane

 

on a mustang dyno = 250-270whp

on a dynoject dyno = 280-300whp

 

Nate tuned mine when it had GT spec II headers, Injen CAI, Invidia Race N1 and ecutek tune.

I ended up with 269 whp and 310 #' tq.

I had the stock TMIC, Stock injectors and Stock pump. My guess is you should see these numbers and maybe a little more. Your other mods will really come into play when you upsize the turbo. I did that with your similar mods and ended up with 338 whp and 331tq. Props to Nate, Joe, Aaron Scott (sticker man extroidinaire)- they run an awesome shop. Very knowledable and probably the best customer service I've encountered.