This Perrin top - mount intercooler is a perfect fit for 2008 - 2021 Subaru STI. It offers a range of amazing features! First, it can add about 10WHP and is rated for vehicles over 600WHP. Pressure - tested to 50 PSI, it's reliable. It's 75% larger than the OEM intercooler, yet no tuning is needed. With a powder - coated black finish, it looks great. Estimated installation time is just 1.5 hours, and you'll get an installation guide. It also comes with a 5 - year manufacturer warranty. In terms of specs, it has a volume of 660 CU IN, a thickness of 3.95', a width of 21.87', and a depth of 7.64'. The finish is powder coat. This intercooler effectively reduces high intake temperatures. It uses durable cast aluminum end - tanks TIG - welded to a highly efficient bar - and - plate core. With a 3.75” thick core and a total volume of 584 in, it optimizes heat transfer for vehicles from stock up to 600 whp.








Using this Perrin top - mount intercooler for your 2008 - 2021 Subaru STI is quite straightforward. First, follow the included installation guide. It should take about 1.5 hours to install. During installation, make sure to connect all parts properly and check for any loose connections. When using the vehicle, this intercooler will automatically work to reduce high intake temperatures. As for maintenance, keep an eye on the pressure. It's been pressure - tested to 50 PSI, so if you notice any abnormal pressure changes, it might be a sign of an issue. Also, check the powder - coated black finish regularly. If there are any scratches or chips, it could lead to corrosion over time. If you do notice damage, you can contact the manufacturer, as it comes with a 5 - year warranty. And remember, this intercooler is designed for vehicles up to 600WHP, so don't push it beyond its rated capacity.