Part #: BLT - SUB - 3.0XT - R Twin Scroll. This high - performance twin scroll turbocharger for Subaru WRX and STi JDM models comes with water pipes, an oil feed line, and a ported exhaust housing. It can deliver up to 550HP! The specs include a Garrett Ball bearing CHRA, a 60mm turbine wheel, a 76mm XT compressor wheel, and it can flow 55lbs per minute. It features a BPT Twin Scroll Turbine housing. Note that a JDM Twinscroll header, uppipe, and downpipe are required for installation.

Using this Blouch Dominator 3.0XT - R twin scroll turbocharger is a great way to boost your Subaru WRX or STI's performance. First, make sure you have all the necessary parts like the JDM Twinscroll header, uppipe, and downpipe for installation. Once installed, start your engine and let it run for a few minutes to let the oil circulate through the turbo. When driving, avoid sudden high - speed starts right after a cold start. For maintenance, regularly check the oil level and the condition of the water pipes and oil feed line. Also, after a long and hard drive, let the engine idle for a couple of minutes before shutting it off to cool down the turbo. If you notice any unusual noises or performance drops, it's a good idea to have it checked by a professional.