a simple easy upgrade the dealer would never see. With a 30% increase of air, means more fuel, means more power
http://turninconcepts.com/tic-2015-wrx-tgv-deletes.html
http://www.iagperformance.com/mobile/Product.aspx?id=40935
http://turninconcepts.com/tic-2015-wrx-tgv-deletes.html
http://www.iagperformance.com/mobile/Product.aspx?id=40935