Torque Solution Billet Transmission Mount - Subaru WRX / STi 2002-2021 CB-4428K measured at the wheels we

measured at the wheels we saw peak gains of 11

You can see the raised gasket compression stop at the lower bolt hole in this stock valve cover

Improved boost holding ability

For that reason

Torque Solution Billet Transmission Mount - Subaru WRX / STi 2002-2021 CB-4428K measured at the wheels weTorque Solution Billet Transmission Mount 02 27 Subaru WRX 04 17 STI This Part Fits: Year Make Model Submodel 2002 2014 Subaru Impreza WRX 2006 2007,2010 2014 Subaru Impreza WRX Limited 2009 2014 Subaru Impreza WRX Premium 2004 2014 Subaru Impreza WRX STI 2007,2011 2014 Subaru Impreza WRX STI Limited 2010 Subaru Impreza WRX STI Special Edition 2006 2007 Subaru Impreza WRX TR 2015 2017 Subaru WRX Base 2015 2017 Subaru WRX Limited 2015 2017 Subaru WRX