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MHI Upgrade Stage 1 Turbo Subaru WRX 49S78-A0000
Genuine Mitsubishi Performance turbocharger
TD05 H-16KX3S-8 (8cm²) performance rating up to 380HP



Note: Water connections and oil return must be adapted!

This TD05 turbocharger was developed as a direct upgrade for the Subaru Impreza WRX and WRX STi models. Like all MHI turbochargers it has a robust plain bearing and an Inconel exhaust wheel with 12 blades for a particularly good response. With this TD05 you get a durable and robust turbocharger in Japanese manufacturing quality for plug'n'play conversion up to 400hp. Only small adjustments are necessary.

Upgrade Turbocharger for: Subrau Impreza WRX and WRX STi
Power range: Up to 400PS
Flange to manifold: Subaru Impreza
Flange to downpipe: Subaru Impreza
Wastegate: Internal, with actuator 1,08bar

Turbine wheel exducer: 49mm
Turbine wheel inducer: 56mm
Compressor wheel inlet: 47,10mm
Compressor wheel outlet: 68mm

Turbo Features:
- Robust double journal bearing
- Special MHI-Inconel exhaust gas wheel for better response
- Efficient compressor wheel with wide map
- Oil- and watercooled

All MHI Performance Turbochargers are original Made in Japan!

MHI Performance turbochargers are a high-quality result of an extremely precise production in the motor sports department of the Japanese turbocharger manufacturer Mitsubishi.
All MHI Performance turbochargers have a very wide compressor map which provides optimum performance at any speed and does not know the typical pumping. Compared to other manufacturers, MHI compressor maps have a higher efficiency over a wider range.

In addition, all Mitsubishi Performance Turbos are equipped with double hydrodynamic bearings. The exhaust wheels made of Inconel, in perfect symbiosis with compressor wheels from the latest development, convince with an amazingly early response and torque development even at low rev ranges and with low boost pressure. This means better drivability in the lower and medium speed ranges, thanks to the best power delivery in the feared turbo lag.

MHI = Made in Japan - Not Made in China!

MHI stands for Mitsubishi Heavy Industries. This is a department of the vehicle manufacturer Mitsubishi which deals among other things with the production of turbochargers for own and also foreign vehicles. MHI turbochargers are also used in the Porsche Panamera Turbo and BMW 2.0L Turbo.
The MHI turbochargers were among the first turbochargers to come onto the market as China plagiarisms. In particular the proximity to Japan and the Japanese vehicle market made these plagiarisms interesting for China. We would like to point out once again that there are still tons of MHI plagiarisms on offer. However, these have nothing to do with the high-precision manufacturing from Japan. We supply exclusively original MHI turbochargers Made in Japan!

Manufacturer-No.: 49S78-A0000

Conseils de montage

Afin d'assurer le bon fonctionnement de votre turbo suivez les recommandations suivantes :

-Dépose/Repose/Nettoyage du carter d'huile moteur

-Remplacement huile, filtre à huile et filtre à air

-Dépose/Repose/Nettoyage de la pompe à huile et sa crépine

-Dépose/Repose/Nettoyage des durites de graissage (arrivée et retour d'huile)

-Contrôle du circuit de suralimentation (Durites/Echangeur d'air/Pipe d'admission/Vanne EGR)

-Changement du reniflard d'air

-Contrôle débit et pression d'huile (au-dessus de 120 000 km)

-Vérification des coussinets de bielle et vilebrequin

-Effectuer 2 rinçages moteur avant le montage du nouveau turbo

-Ne jamais utiliser de pâte à joint, ni de pâte à échappement

Références Alternatives

49S78A0000 / 49S78-A0000

Références OE

49S78A0000 / 49S78-A0000