If you're diving into the Subaru scene, you've probably heard of Tomei Powered. They've been putting in some serious work for the Subaru Impreza crowd here in the States. A while back, they took a deep dive into the EJ engine, and now they've got some killer products, like this EJ20/25 un-equal length exhaust manifold.
This manifold is specifically designed for models running a single scroll turbocharger. What's cool about it is the un-equal length design—it's crafted to minimize the distance from the exhaust port to the turbo. This means quicker spool times and that unmistakable Subaru boxer growl we all love. Plus, they've kept welded areas to a minimum, thanks to their expert pipe bending specialist and a unique lost wax process using thin stainless steel. This means you're less likely to run into fractures or cracks down the line.
Now, let's talk specs: the main piping is 42.7mm, while the downpipe measures in at a solid 60mm. This setup helps maintain torque while giving you some nice performance gains overall. You're not just bolting on a part; you're enhancing your ride's capabilities.
Specifications:
Install Instructions:
Fitment:
This manifold fits:
So, if you're looking to boost your Subaru's performance while keeping that signature sound, this Tomei manifold is definitely worth considering. It's got the build quality and design that enthusiasts appreciate, and it's made to last.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2004-2024 Subaru STI |
STI | 2004-2024 |
|
2002-2025 Subaru WRX |
WRX | 2002-2025 |

Tomei is one of the most recognizable brands when it comes to performance tuning. The company started in 1968 by Mr. Seiichi Suzuki and initially tuned race cars. Their concept is “To produce a great product for ultimate driving pleasure” which has translated into all their parts, making it a sought-after brand worldwide. Today, Tomei is used by various enthusiasts, tuners, professional drivers, and racers everywhere.
Racing HeritageTomei has its roots firmly attached to motorsports racing. With its experience in creating fast cars for decades, it was able to create parts that are considered as one of the most.sophisticated and technologically advanced parts in the market. Not only does it produce power. It ensures that it maintains its reliability as well.
The company offers a wide range of products, ranging from engine components such as camshafts, valve springs, pistons, connecting rods, cam gears, gaskets, limited slip differentials, exhaust systems, and more. Their parts are designed to perform well, not only on the streets, but on the track as well.
They have various race track records under their belt to prove it.
Purchase Tomei Products at Vivid RacingIf you want to upgrade the performance of your vehicle, then Tomei is the right brand for you. The company has consistently provided its customers with high-perfromance products that deliver what it promised. Using only the highest quality of materials available, which includes Titanium, they are able to develop parts that are strong and lightweight. This is the formula for a better performing engine. Visit Vivid Racing and check out their list of products that would fit your specific requirement.