Want to modify or upgrade your 2004-2007 Subaru Impreza WRX STI with aftermarket catalytic converter universal? At OGTuners.com we have a great selection of aftermarket performance parts for your Subaru Impreza. We have 13 catalytic converter universal parts available in our store with free shipping to the Continental US.
Magnaflow Universal Converter
 $589.00 441074MagnaFlow Conv Universal 2.00 Angled Inlet Rear CA IN STOCK (5) SHIPS FROM MANUFACTURER (Last checked: 02/14/2026) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2006-2006 Subaru Impreza WRX STI |
 $517.00 441334MagnaFlow Conv Univ 2.00inch 1-O2 Rear 50 State IN STOCK - LOW 2004-2005 Subaru Impreza WRX STI |
 $517.00 441335MagnaFlow Conv Universal 2.25 Rear with O2 IN STOCK (5+) SHIPS FROM MANUFACTURER (Last checked: 02/14/2026) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2004-2005 Subaru Impreza WRX STI |
 $335.00 444084MagnaFlow Conv Univ 2.00inch Angled In / Out IN STOCK (5+) SHIPS FROM MANUFACTURER (Last checked: 02/14/2026) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2004-2005 Subaru Impreza WRX STI |
 $327.00 444104MagnaFlow Conv Univ 2in Inlet/Outlet Vehicle Specific CA OBDII IN STOCK (5+) SHIPS FROM MANUFACTURER (Last checked: 02/14/2026) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2005-2005 Subaru Impreza WRX STI |
 $327.00 444105MagnaFlow Conv Univ 2.25inch OBDII Front 50State IN STOCK (5+) SHIPS FROM MANUFACTURER (Last checked: 02/14/2026) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2005-2005 Subaru Impreza WRX STI |
 $378.00 444205MagnaFlow Conv Universal Chrysler/Ford/Mercedes-Benz/Saab/Toyota/Volkswagen *CALIFORNIA OBDII* IN STOCK (5+) SHIPS FROM MANUFACTURER (Last checked: 02/14/2026) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2006-2006 Subaru Impreza WRX STI |
 $378.00 444206MagnaFlow Conv Universal 2.50 Front CA IN STOCK (1) - LOW SHIPS FROM MANUFACTURER (Last checked: 02/14/2026) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2006-2006 Subaru Impreza WRX STI |
 $372.00 444504MagnaFlow Conv Universal 2.00 Front Spun IN STOCK (3) SHIPS FROM MANUFACTURER (Last checked: 02/14/2026) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2004-2005 Subaru Impreza WRX STI |
 $178.00 51176MagnaFlow Conv Universal 2.50 Angled Inlet OEM IN STOCK (5+) SHIPS FROM MANUFACTURER (Last checked: 02/14/2026) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2004-2009 Subaru Impreza WRX STI |
 $718.00 5411306Magnaflow Conv Univ 2.50/2.50 Straight IN STOCK (2) - LOW SHIPS FROM MANUFACTURER (Last checked: 02/14/2026) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2006-2007 Subaru Impreza WRX STI |
 $484.00 5571176Magnaflow 2.50 Angled Inlet CA Universal Converter IN STOCK (5+) SHIPS FROM MANUFACTURER (Last checked: 02/14/2026) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2006-2007 Subaru Impreza WRX STI |
 $172.00 99176HMMagnaFlow Conv Univ 2.50inch Angled Inlet IN STOCK (5+) SHIPS FROM MANUFACTURER (Last checked: 02/14/2026) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2004-2007 Subaru Impreza WRX STI |