Engine

Here you will find all the components under the hood of your performance street car. From oil changes to short blocks and everything in between. Not sure whats right for your vehicle? Contact sales@builtnotboughtauto.com 

Product wishlist
Koyo Aluminum Racing Radiator (Manual Transmission) For 2003-2007 WRX/STI
Koyo Aluminum Racing Radiator (Manual Transmission) For 2003-2007 WRX/STI
$398.00
All aluminum construction Heli-arc welded for stronger enforcement along aluminum connections Thicker core Precise tube and fin alignment...
Cobb Tuning Air/Oil Separator For 2015+ WRX
Cobb Tuning Air/Oil Separator For 2015+ WRX
$560.00
The COBB Air/Oil Separator is placed within your Subarus crankcase ventilation system and helps to prevent oil vapors...
Mishimoto Aluminum Radiator for 2008-2014 WRX / 2008+ STi
Mishimoto Aluminum Radiator for 2008-2014 WRX / 2008+ STi
$475.00
Mishimoto 08-14 Subaru WRX / 08-15 STi / 05-09 Legacy Manual Aluminum Radiator. For Racing Application The X...
Mishimoto Aluminum X-Line Radiator for 2002-2007 WRX / STI
Mishimoto Aluminum X-Line Radiator for 2002-2007 WRX / STI
$538.00
Mishimoto 01-07 WRX/STi Manual Aluminum Radiator. For Racing Application The X LINE is recommended due to its higher...
Mishimoto Aluminum Radiator for 2002-2007 WRX / STI
Mishimoto Aluminum Radiator for 2002-2007 WRX / STI
$427.00
Mishimoto 01-07 WRX/STi Manual Aluminum Radiator. For Racing Application: The X LINE is recommended due to its higher...
GrimmSpeed Black Thermal Coating Top Mount Intercooler For 2002-2007 Subaru WRX / 2004+ STI / 2004-2007 FXT
GrimmSpeed Black Thermal Coating Top Mount Intercooler For 2002-2007 Subaru WRX / 2004+ STI / 2004-2007 FXT
$799.00
The bar has been raised. So, you probably already know that you want an intercooler with maximum cooling...
GrimmSpeed Top Mount Intercooler Kit For 2008-2014 Subaru WRX
GrimmSpeed Top Mount Intercooler Kit For 2008-2014 Subaru WRX
$999.00
Meticulous Engineering Meets Unparalleled Craftsmanship. You probably already know that you want an intercooler with maximum cooling and...
GrimmSpeed Top Mount Intercooler Splitter For 2004-2008 Subaru Forester XT
GrimmSpeed Top Mount Intercooler Splitter For 2004-2008 Subaru Forester XT
$247.00
OEM Splitter choking your TMIC? We can fix that. These have both been a long time in the...
GrimmSpeed Hood Scoop TMIC Splitter For 2004-2005 STI
GrimmSpeed Hood Scoop TMIC Splitter For 2004-2005 STI
Out of stock
OEM Splitter choking your TMIC? Fix that. Tired of popping your hood only to have that ugly OEM...
IAG Performance V3 Gold Top Feed Fuel Rails For 2002-2014 WRX / 2007+ STI / 2008-2012 Legacy GT / 2006-2013 Forester XT
IAG Performance V3 Gold Top Feed Fuel Rails For 2002-2014 WRX / 2007+ STI / 2008-2012 Legacy GT / 2006-2013 Forester XT
$199.99
Features: CNC machined from billet aluminum 5/8” Bore I.D. designed to accept -8 O-ring boss fittings 2 piece...
IAG Performance V3 Red Top Feed Fuel Rails For 2002-2014 WRX / 2007+ STI / 2008-2012 Legacy GT / 2006-2013 Forester XT
IAG Performance V3 Red Top Feed Fuel Rails For 2002-2014 WRX / 2007+ STI / 2008-2012 Legacy GT / 2006-2013 Forester XT
$199.99
Features: CNC machined from billet aluminum 5/8” Bore I.D. designed to accept -8 O-ring boss fittings 2 piece...
GrimmSpeed Top Mount Intercooler for 2015+ WRX
GrimmSpeed Top Mount Intercooler for 2015+ WRX
$899.00
Meticulous Engineering, Unparalleled Craftsmanship Replace that undersized, plastic stock intercooler with a GrimmSpeed Top Mount Intercooler Kit, featuring...
Koyo Aluminum Racing Radiator (Manual Transmission) For 2003-2007 WRX/STI
Koyo Aluminum Racing Radiator (Manual Transmission) For 2003-2007 WRX/STI
$398.00
Cobb Tuning Air/Oil Separator For 2015+ WRX
Cobb Tuning Air/Oil Separator For 2015+ WRX
$560.00
Mishimoto Aluminum Radiator for 2008-2014 WRX / 2008+ STi
Mishimoto Aluminum Radiator for 2008-2014 WRX / 2008+ STi
$475.00
Mishimoto Aluminum X-Line Radiator for 2002-2007 WRX / STI
Mishimoto Aluminum X-Line Radiator for 2002-2007 WRX / STI
$538.00
Mishimoto Aluminum Radiator for 2002-2007 WRX / STI
Mishimoto Aluminum Radiator for 2002-2007 WRX / STI
$427.00
GrimmSpeed Black Thermal Coating Top Mount Intercooler For 2002-2007 Subaru WRX / 2004+ STI / 2004-2007 FXT
GrimmSpeed Black Thermal Coating Top Mount Intercooler For 2002-2007 Subaru WRX / 2004+ STI / 2004-2007 FXT
$799.00
GrimmSpeed Top Mount Intercooler Kit For 2008-2014 Subaru WRX
GrimmSpeed Top Mount Intercooler Kit For 2008-2014 Subaru WRX
$999.00
GrimmSpeed Top Mount Intercooler Splitter For 2004-2008 Subaru Forester XT
GrimmSpeed Top Mount Intercooler Splitter For 2004-2008 Subaru Forester XT
$247.00
GrimmSpeed Hood Scoop TMIC Splitter For 2004-2005 STI
GrimmSpeed Hood Scoop TMIC Splitter For 2004-2005 STI
Out of stock
IAG Performance V3 Gold Top Feed Fuel Rails For 2002-2014 WRX / 2007+ STI / 2008-2012 Legacy GT / 2006-2013 Forester XT
IAG Performance V3 Gold Top Feed Fuel Rails For 2002-2014 WRX / 2007+ STI / 2008-2012 Legacy GT / 2006-2013 Forester XT
$199.99
IAG Performance V3 Red Top Feed Fuel Rails For 2002-2014 WRX / 2007+ STI / 2008-2012 Legacy GT / 2006-2013 Forester XT
IAG Performance V3 Red Top Feed Fuel Rails For 2002-2014 WRX / 2007+ STI / 2008-2012 Legacy GT / 2006-2013 Forester XT
$199.99
GrimmSpeed Top Mount Intercooler for 2015+ WRX
GrimmSpeed Top Mount Intercooler for 2015+ WRX
$899.00
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