The external wastegate is the best way to get rid of the infamous overboost issue many Subaru’s have. It will provide superior boost control and boost response over the stock internal wastegate.  It is made from 2 inch diameter 1/8th thick 304 stainless tubing and laser cut stainless flanges. It provides a perfect fit and a long durability. 
 
Made to fit a 40mm Turbosmart wastegate
 
**This part requires custom ecu tuning** 
 
 Compatible with the following vehicles:

-STI 2004-2020
-WRX 2002-2014
-Legacy 2.5GT 2005-2009
-Forester XT 2004-2013