If you’re looking to crank up the power on your ride, the Garrett G42-1200 Turbo Assembly Kit is a solid option that’s worth checking out. This beast is designed to handle everything from 2.0-liter to 7.0-liter engines, making it a versatile choice for a range of builds. With the ability to push out a whopping 1200 horsepower, it’s not just about the numbers; it’s about the thrill of the drive.
One of the standout features of this turbo is its quick spooling capability. You won’t be left waiting around for boost—this thing gets you there fast. The ten-blade, forged compressor wheel is fully machined and designed with high-flowing aero in mind, which means you’re not just getting power; you’re getting efficiency. The low inertia compressor wheel ensures that your boost response is snappy, so you can feel the difference right away.
What really sets the G42-1200 apart is the new turbine aero wheel. It flows about 10% more than its predecessor, the GTX42, with a peak efficiency rating of 77%—that’s a solid jump from the GTX42's 74% at a 1.01 A/R. Plus, it’s built with inconel super alloy, which means it can handle extreme temperatures, up to 950°C. That durability is crucial if you’re pushing your engine hard.
Now, let’s talk specs. The compressor wheel has an inducer size of 73mm and an exducer size of 91mm, with a trim of 65. The compressor housing A/R is 0.85, while the turbine wheel comes in with an inducer of 82mm and an exducer of 75mm, sporting a trim of 84. These numbers all work together to give you that perfect balance of power and responsiveness.
When it comes to installation, Garrett doesn’t leave you hanging. The kit includes everything you need: coolant fittings, oil feed flanges, gaskets, and various V-band clamps and flanges. You’ll need a couple of 14mm coolant fittings and lines, and for oil, you’ve got a -4 AN feed flange with a built-in restrictor, along with all the necessary gaskets. This makes it easier to get everything set up without having to hunt for additional parts.
In short, if you’re serious about boosting your engine’s performance, the Garrett G42-1200 Turbo Assembly Kit has the features and durability to take your ride to the next level.
⚠ 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.