COBB Tuning TD05H-20G-8 Turbocharger Assembly (SKU: E1120G) - Fit for 2008-2021 Subaru WRX STI / Legacy GT
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| Turbo Model | TD05H-20G-8 |
| Compressor Blade Material | Forged Aluminum Alloy (Billet Aluminum) |
| Compressor Induction Diameter | 52.5mm |
| Compressor Outer Diameter | 68mm (20G Trim) |
| Turbo Blade Outer Diameter | 55.8mm |
| Turbo Shell Area-to-Ratio | 8cm² (Approx. 0.53 A/R) |
| Bearing Type | Full Floating Bearing (Journal Bearing) / 360° Thrust Bearing |
| Max Supported Horsepower | 400 HP |
| Installation | Straight bolt mounting |
| Certification | CARB E.O. D-600-1 (Legal on Road) |
| Applicable Fuel | Gasoline / E85 / Racing Fuel |
| Exhaust Bypass Valve Type | Built-in Exhaust Gas Recirculation Valve |
Manufacturer No.
E1120GCOBB TD05H-20G-8COBBE1120G
OEM Part No.
49179-43400
Engine Part No.
EJ257EJ255EJ20EJ25
Interchange No.
Kinugawa TD05H-20GMaxpeedingrods TD05-20GZAGE TD05-20GBoost Lab TD05H-20GArashi TD05H 20G CHRARev9 TD05HR 20GmaXpeedingrods TD05-20GHYTURBO TD05H-20G
Fitment Vehicles
Subaru Impreza WRX STI 2008-2021Subaru WRX 2008-2014Subaru Legacy GT 2005-2009Subaru Forester XT 2009+Subaru Impreza WRX STI 2002-2006 (turbo model to be confirmed)
Exhaust and Intake System - Industrial Encyclopedia
COBB Tuning TD05H-20G-8 Turbocharger (Part Number E1120G) is designed specifically for the 2008-2021 Subaru STI (EJ257) and 2008-2014 WRX models. Featuring a 68mm forged aluminum compressor wheel and an 8cm² turbine housing, it supports 400 horsepower output, balancing low-end torque response and high-rpm surge, direct bolt-on installation without modification, CARB certified, and is an ideal upgrade for both street and track use. It can replace OEM part numbers such as 49179-43400 and others.