If you’re a proud owner of a 2005-2009 Subaru Legacy GT or Subaru Outback XT, you already know the importance of keeping your engine’s intake air cool. The GrimmSpeed 90043 Intercooler is designed for those who demand maximum cooling efficiency and minimal airflow restriction, ensuring that your turbocharged engine performs at its best, even under high boost conditions.
As your turbocharger compresses air, it naturally heats up due to increased pressure. This heat can lead to lower air density, resulting in pre-detonation or “knock,” which can severely limit your engine's performance. While your stock top-mount intercooler (TMIC) may handle everyday driving just fine, it struggles to keep up when you push your Subaru to its limits. The GrimmSpeed 90043 is engineered to combat heat soak, allowing for sustained performance during spirited driving or track days.
Subaru Legacy GT owners have reported significant performance improvements after installing the GrimmSpeed 90043. One user stated, “After I installed this intercooler, I noticed a drastic drop in intake temperatures, especially during track days. My car pulls harder and feels more responsive than ever!” Another Outback XT owner shared, “This intercooler was a game changer. I pushed my Outback to higher boost levels without any signs of heat soak. It's a must-have upgrade!”
Upgrade your Subaru’s intercooler with the GrimmSpeed 90043 and experience the difference in performance. Don’t let heat hold you back—keep your engine running at its peak!
Other Part Numbers:
GrimmSpeed #GRM090043
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2005-2009 Subaru Legacy |
Legacy | 2005-2009 |
|
2005-2009 Subaru Outback |
Outback | 2005-2009 |

Grimmspeed is an automotive aftermarket company that was founded in 2006 by Justin Grimm. They specialize in creating parts for the exhaust system for various automotive vehicles. Grimm has always had this passion for cars and had always wanted to improve his vehicle’s performance. After numerous trials, he was able to perfect his craft and later on decided to turn it into his career. Today, they have become one of the leading brands when it comes to producing high-performance exhaust systems.
Expanding their Product OfferingThe company initially manufactured parts for Subaru. But as the company expanded, they started offering parts for other brands such as Ford, Mitsubishi, Hyundai, and Mazda. They now offer parts such as intercoolers, intake, exhaust, engine pulleys, gaskets, boost controllers, phenolic spacers and so much more.
Continuous Product DevelopmentGrimmspeed never stops in finding ways to produce innovative products and is always on the push to keep their products up to date. With the rapid change in automotive technology, it is a must that their product is able to adapt to this change for it to satisfy the demand of its users. This is the reason why the company has gained the trust of many tuners all around.
Purchase Grimmspeed Product at Vivid RacingBuilt by an enthusiast for fellow enthusiasts.
If you want a product that is designed to improve the performance of your vehicle, then Grimmspeed is the brand for you. To know more about Grimmspeed, visit Vivid Racing and check out their list of products that would fit your specific needs.