If you're on the hunt for a turbo that really knows how to deliver, let me introduce you to the Garrett GTW3884JB, also known as the GTW6465JB. This little beast sports a 64mm journal bearing design and is built to handle some serious power—up to 900 HP, in fact. With its .78 A/R T3 divided configuration and a 3" V-BAND outlet, it’s designed for those who want to push their ride to the next level without breaking the bank.
Now, let’s talk specs. The compressor wheel has an inducer size of 64.3 mm and an exducer of 84.4 mm, with a trim of 58. Over on the turbine side, you’re looking at a 74.2 mm inducer and a 64.6 mm exducer, with a trim of 76. The compressor housing is a T04S frame, featuring a 4" inlet and a 2.5" outlet, and it’s got a built-in anti-surge design that really helps with performance. Trust me, you’ll appreciate that when you're pushing your engine hard.
But hold up, before you think about just swapping this in, there are a few things you should know. This turbo isn’t a direct drop-in for the smaller Garrett GT or GTX series. The GTW series is bulkier, so make sure you’ve got the space for it. Also, the oil return fittings are different from the smaller models, so you’ll need to keep that in mind when you're planning your setup.
Speaking of setup, let’s get into the nitty-gritty of what you’ll need. For coolant, you’ll want to grab two 14mm fittings and lines. When it comes to oil feed, a -4 AN with a built-in restrictor (check out product code ATP-OIL-021) is your best bet. And don’t forget the oil drain flange (ATP-FLA-042) and gasket (ATP-GSK-027) to keep everything sealed up tight. You’ll also need some 8mm x 1.25 bolts (MIA-FST-034) to secure everything in place.
For the turbo manifold, you'll need a T3 divided inlet flange (ATP-FLS-068) and gasket (ATP-GSK-015). And to connect to your downpipe, grab a V-Band 3-inch outlet flange (ATP-FLS-063) and the corresponding outlet clamp (CLC-CLA-013). It’s all about getting those connections right to ensure you’re maximizing performance.
In short, the Garrett GTW3884JB is a solid choice for anyone looking to upgrade their turbo setup. It’s got the specs to back it up, and with the right installation, you’ll be feeling the boost in no time.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Advanced Tuning Products, Inc. (ATP Turbo) is a company that is solely dedicated to turbocharging. Its main goal is to engineer and manufacture quality turbocharging components that deliver a real difference in power gains. Currently located in Hayward, California, ATP Turbo offers an extensive lineup of innovative turbo components, all of which are backed by years of experience and a solid international reputation. The brand’s current lineup includes a wide range of blow-off valves, injectors, adapters, and several other turbo components that are engineered to bring about a significant boost in power.
Dedication to Quality and ReliabilityWhile that act of turbocharging itself is not “new”, many of the parts ATP Turbo creates are born from “fresh” ideas that arise from applying the basic principles of process improvement and re-engineering to turbo systems. Following these philosophies has helped ATP Turbo design and re-design turbocharging components that are reliable, better functioning, and, oftentimes, more simplified than their stock counterparts. ATP products can be purchased as separate components or as a complete kit. For those taking on a larger tuning project, an ATP Turbo kit is certainly the better choice as it has everything you need to get the job done efficiently.
ATP Turbo’s processes rely on the latest equipment and tools to build only the best products in a timely fashion. All of its products are built using the latest high-precision equipment like 4-axis Haas CNC milling stations and lathes. With this, the company is able to switch from prototypes to high-speed production in very little time. What’s more, they are manufactured from high-quality materials to ensure superior durability for longevity and reliability.
ATP’s turbocharging components complement the best turbochargers offered by the aftermarket industry. Garrett Engine Boosting Systems is known for its unsurpassed performance and reliability. Garrett turbo units provide the solid foundation for ATP’s turbocharging applications.
Upgrade to ATP Turbo at Vivid RacingIf you are looking for the finest turbo equipment on the market, then you’ve come to the right place. ATP Turbo manufacturer top-of-the-line turbochargers and turbo components to improve upon the already impressive performance figures of vehicles like the Ford Focus ST, Ford Fiesta ST, Subaru WRX, Mitsubishi EVO, and Hyundai Genesis. ATP produces and tests all of its own products to ensure that each part offers the consumer optimal performance gains.
If you are ready to release the potential of your ride, call our parts specialist today at (480) 966-3040. We will get you equipped with ATP Turbo and make the purchase process a simple and pleasant one.