The Rogue turbocharger was originally developed in 2014 as a test platform for the Subaru market for those that were looking for the massive torque and responsiveness of Cusco’s Time Attack EJ257 car in a “stock location” styled configuration for the masses, however, this one was catered to the WRX 2.0 litre platform in which the camshafts used are less aggressive than the WRX STI. As always, it uses a genuine Garrett GT series silicon-ceramic hybrid duall-ball bearing system
That wait is now over. The new Rogue is now not only available in the stock location Subaru WRX/STI platform, but has been made to work in a universal compressor/turbine housing configuration as of 2017.
This unit is based upon Garrett’s GT /GTX Ballistic-ball bearing series of turbochargers but with more refinement than what the normal GTX series would normally be able to offer.
Using STC’s 6 splitter-blade configuration based upon the successful Garrett TR30R Rally Edition turbocharger, the “Roque” is a road-race oriented turbocharger that uses the same GT Center Housing Rotating Assembly (CHRA) as the GT2871R and GTX2976R, and comes in ball-bearing configuration only. So, you get the massive torque and power within the RPM range in a smaller compact package than the GTX28 –R series.
This unit is a direct bolt-on to the Subaru WRX /STI from 2004-2007 model years and 2015 model year. The 2008-2011 will also fit although it may require some slight modification to the engine bay.
The assembly comes with a GoFastBits internal gate (.8Bar) 11.76psi internal spring that has a preload setting option in the actuator rod, but can be easily replaced with either a Garrett Internal Wastegate or a Turbosmart internal gate (recommended).
CHRA configuration: Garrett GT(X)
Use of water lines - required 14mm x 1.5
Use of .030”restrictor /regulator for engines that reach over 40psi(2.7Bar)psi of oil pressure – recommended / required
Use of Inline Oil filter – Highly Recommended
It Is not recommended to use flange-styled restrictors. This will destroy the turbocharger.
Answers as an in-between the GTX2867R and GTX2871R. Road-Race and street oriented
Power Level / Characteristics
*350awhp to 480awhp capability
*Effective Boost pressure efficiency range – 11.5psi(0.8Bar) -24psi(1.6Bar)
*Engine Displacement Range – 2.0 Litre-2.5 (Single) EJ Engine platform series.
*Garrett GT(X)-R Cartridge
*STC 6-splitter blade configuration Garrett TR30R Rally-Styled T6-7075 Forged Aluminum compressor wheel
* 8cm (.73A/R) Subaru 5 bolt flange turbine housing
*54mm N118 GT28R Turbine wheel used
*50lbs/min T6-7075 forged aluminum compressor wheel
*68mm Exducer Compressor wheel (71mm including extended exducer tip)
*34mm turbine wastegate Flapper door
*27mm turbine wastegate aperture
*TD05 Subaru-styled stock location compressor cover - 2.3”(58.42mm) Inlet / 2.1” (53.34mm) Outlet