Join Date: Sep 2011
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you can get the exhaust headers and turbo from a JDM STi, they attach right up to your car and they're twin scroll.
I only read the first page and I'm excited, is it released yet?!!
What's the price going to be? Full bolt on kit everything included except fuel upgrade correct?
^ think I'll be going with an 08 sti= save on my pocket.
Starting to school myself now that mod bug is gonna bite hard!
Car: 2008 Subaru Impreza WRX STi
Tuner: Me, Paul Leung of YimiSport Tuning
Dyno Info: Dynojet 424X
Ambient Temp: 95*F
Elevation: about 1300' ASL
Transmission: Stock 6MT
Peak HP at RPM: 440whp @ 5900rpm (E85). 350whp @ 5900rpm (CA 91 octane)
Peak Torque at RPM: 443ft/lbs @ 3600rpm (E85). 353ft/lbs @3600rpm (CA 91 octane)
Baseline hp/tq for a stock on same dyno: 230HP/255tq - 2008 STi
Target Boost: 25 PSI (E85), 22 PSI (91 Octane)
Target AFR: 12:1 (gasoline scale on E85), 10.9:1 on 91 octane
Fuel: E85 and CA 91 octane pump gas
Pump and E85 compared with a typical Stage 2 08+ STI
Damn near stock turbo spool with nearly 200whp more by redline... not too shaby
They are available now - the 6258s are in stock and 6758s are coming in consistently. Deatschworks 1000cc or ID1000s is the recommended injector, and you can pair it with the DW fuel pump or a walbro 400lph works great for gasoline (walbro 416 if E85 is used)
Hello Boostinchick, The 1.5scroll kits are popular for the reasons you mentioned. Simple bolt on, allows you to keep TBE and existing turbo etc. However it can not perform at the same level as the EFR turbo (even on stock lower manifold). If you are a 2.5L considering GT3071R, the 6758 would be my recommendation. Conversely if you are a 2.0L the 6258 is suggested
With our EFR stock location you still retain the CBE, just need to change out your stock style DP, or get it modified to fit the EFR. The EFR turbos are simply too long to use the stock subaru config DP flanges.
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