Modifications Database

The AMS Performance Charge Pipe is one of the more convincing reliability-plus-performance upgrades in the current AMS VB catalog because it directly replaces the restrictive OEM plastic piping with a full 2.5-inch high-flow path. Community-wise, that makes...

The AMS Complete Engine Dress-Up Kit is a bundled engine-bay package for owners who want the full premium visual treatment rather than piecing together hoses, shrouds, covers, and caps one at a time. Community-wise, this is not a necessity, but it absolutel...

The AMS Engine Coolant Hoses are more of a quality and longevity upgrade than a headline performance part, but that is exactly why they matter to a certain kind of VB build. Community-wise, these are the parts owners add when they are trying to clean up the...

The AMS Engine Pulley Cover is another engine-bay dress-up piece that fits the same niche as pulley covers and shrouds from other premium Subaru brands: not a power part, but a visible finishing touch for owners who care about presentation. It is most valua...

The AMS Fender Shrouds are classic engine-bay finishing pieces: not necessary for power, but very effective at making the bay look cleaner and more intentionally built. In the community, parts like this appeal most to owners who want an OEM-plus presentatio...

The AMS Performance Front Mount Intercooler is the kind of cooling upgrade the VB community usually associates with more serious power goals, repeated hard pulls, and builds that have moved well beyond basic bolt-ons. AMS emphasizes a highly efficient 4-inc...

The AMS Performance Top Mount Intercooler is one of the easiest AMS products for the VB community to justify because it keeps the factory top-mount layout while delivering a 71 percent larger core size, substantially lower charge temperatures, and far bette...

From the community perspective, the COBB Top Mount Intercooler is a very balanced cooling upgrade for the VB because it meaningfully increases airflow and cooling capacity without giving up the response and packaging advantages of the stock top-mount layout...

The ETS Front Mount Intercooler is a major cooling-system upgrade for the VB WRX and is aimed at owners pushing the platform harder with repeated pulls, track use, or more ambitious tuning. By moving to a front-mount layout, it prioritizes thermal efficienc...

The ETS Front Mount Intercooler Piping Kit is a supporting hardware package designed for owners piecing together or refining a front-mount intercooler setup. It focuses on clean routing, strong fitment, and improved charge-path flow, making it an important ...

The ETS Quick Spool Turbo Kit is one of the most serious power-oriented products in the ETS VB lineup and is designed for owners moving far beyond basic bolt-ons. ETS offers multiple Garrett turbocharger options and builds this kit around the factory electr...

The ETS Silicone Radiator Hose Kit is a supporting cooling-system upgrade intended for owners who want more durable and visually cleaner engine-bay plumbing than stock rubber hoses provide. It is not a headline power mod, but it fits well into engine-bay re...

The Titanium Front Mount Intercooler Piping Kit serves the same cooling-system role as the standard piping kit but leans harder into premium material choice and engine-bay presentation. It is best suited to higher-end builds where finish quality matters alo...

The ETS Titanium Top Mount Charge Pipe delivers the same core performance path as the stainless version while adding a more premium material choice and stronger engine-bay presentation. It is best suited to owners who want both improved flow and a more visu...

The ETS Ultimate Intercooler Kit is positioned as a top-tier cooling solution for the VB platform and is aimed at owners who want maximum intercooler capacity and a very complete front-mount-style solution. It makes the most sense on power-focused or high-c...

The GrimmSpeed Billet Top Mount Intercooler Kit is generally viewed as one of the premium TMIC choices for the VB because it combines a very large cooling core with billet end tanks and strong fitment reputation. In the community, it is usually recommended ...

The GrimmSpeed Charge Pipe Kit replaces the factory plastic charge pipe with a mandrel-bent 2.5-inch aluminum setup that the VB community generally sees as both a reliability and flow upgrade. It is one of the more sensible supporting mods for tuned or hard...

The MAPerformance Top Mount Intercooler is a direct-fit cooling upgrade for the VB platform that keeps the stock top-mount layout while increasing cooling capacity and reducing heat soak. With cast aluminum end tanks, a 3.5-inch core, and a bolt-on design, ...

These AR Style Fender Shrouds are engine-bay dress-up pieces that replace the factory plastic covers with a more premium and visually deliberate panel treatment. They are best for owners who care about engine-bay presentation, want a cleaner show-ready look...

The Perrin Charge Pipe replaces the restrictive OEM plastic pipe with a more durable aluminum design intended to improve airflow and boost response. It is one of the most natural companion mods to an intercooler or intake upgrade because it addresses a know...

The Perrin Diverter Valve is a functional turbo-system upgrade aimed at improving drivability and reducing boost leaks with a fully recirculating design. Perrin emphasizes that it is boost-leak free, designed for 2022+ WRX fitment, and does not require tuni...

The Perrin Pulley Cover is another engine-bay finishing mod that adds color and a more intentional look to the belt and pulley area. It is a small part, but it sits in a visible location and works especially well as part of a broader Perrin engine-bay dress...