TB401A - SB01A. This Tomei ARMS turbocharger is a top - notch upgrade for specific Subaru models. Fitment includes Subaru Impreza WRX from 2002 to 2007, Subaru Impreza WRX STi from 2004 to 2021. It also fits Subaru Impreza WRX 2008 - 2014, Subaru Legacy GT 2005 - 2009, and Subaru Outback XT 2005 - 2009, but only if you have an STI style intercooler/piping. Key features are an A2618 CNC billet aluminum compressor wheel. The compressor wheel measures 52.6mm/68mm, and the turbine wheel is 49.1mm/56mm. It has a.57 A/R turbine housing and a journal bearing. If your Subaru has an EJ205/EJ255/EJ257 engine and you want more power, this turbo is a great direct - bolt - on replacement. However, remember to upgrade your fuel system to prevent damage. If you're unsure about setup, contact us at
[email protected].
Using this Tomei ARMS turbocharger is straightforward. It's a direct - bolt - on replacement, so you can install it just like the original turbo. But before you start, make sure you have an STI style intercooler/piping if your car model requires it. When it comes to the fuel system, since this turbo gives more power, you need to upgrade it accordingly. Otherwise, your engine might overheat or get damaged. As for maintenance, regularly check the compressor and turbine wheels for any signs of wear. Keep the journal bearing lubricated as per the manufacturer's instructions. If you run into any issues or aren't sure about something, don't hesitate to reach out to us via the website or email.
