Author Archives: XRT

700whp+ Subaru Club – 2011 USDM STI 2.5 6MT

IAG stg 4 extreme block
14mm headstuds
Fire ring headgaskets
Pinned mains.
Garrett GTX3582R Gen 2
Ported heads, valves
Springs and Bc 280 cams
Ams intake manifold
TGV deleted

Full turbo back 3inch
Perrin big tube equal length headers
External wastgate 44mm
Grimmspeed 3Port boost controller

Injector dynamics 1700x
Radium in tank dual pumper
Dual AEM 340s Fuel Pumps
Perrin fuel rails regulator
PTFE line throughout
Radium -8 feed and return lines
Radium FPR 48psi base pressure

4bar map sensor -OMNI
Gm IAT sensor

Videos –

Raptor Supercharged 6Gen 2015+ Subaru Legacy 3.6R CVT

The 6Gen 2015+ Subaru Legacy 3.6R #CVT is a nice package, just like the 5Gen to be #Supercharged or #Turbocharged. The latter is the 5EAT for those who may not remember or now starting to love #Subaru. With indirect transmission tuning, there is no issue tuning this model for the performance you need but owners must remember this platform runs tight engine tolerances and does heat up pretty quickly, so it is important that you keep everything cooled – Engine Coolant, especially Engine and Transmission Oil. It would be advisable to run bigger oil and transmission coolers if you plan to run the car above average and in hot climatic regions. Besides heat, the only issue we see for SC operations is the belt, which is nothing new for any SC, and belt torque is very important.

Please note for any boosted application, we recommend cooling the Air-charged and running a BPV plummed back to the intake like in other Turbocharged Subaru’s. If possible, try to keep the MAF in the original location, if not, it would be a little more tuning but we advise full customised tuning and not drop-in-based maps or maps considered to be full tunes.

Xtreme Racing Tuning has been tuning Boosted-NA’s for 10+ years and is your trusted resource for your next project. We can safely say we have been sharing such results for years outside of customers’ own posts for global reference. For further information please search our forum and FB page for references and reviews.