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
GrimmSpeed Radiator Hose Kit For 2015+ WRX / 2014+ Forester XT
GrimmSpeed Radiator Hose Kit For 2015+ WRX / 2014+ Forester XT
$116.00
Your Subaru’s cooling system is only as good as its weakest link, commonly that’s the old, dry-rotted OEM...
GrimmSpeed Black Cold Air Intake For 2013+ BRZ/FR-S
GrimmSpeed Black Cold Air Intake For 2013+ BRZ/FR-S
$375.00
Real 10whp gains in 30 min with no tuning. Design requirements for this intake were simple: The intake...
GrimmSpeed Boost Control Solenoid For 2008+ STI
GrimmSpeed Boost Control Solenoid For 2008+ STI
$136.00
The Original Direct-Fit BCS for turbo Subarus. GrimmSpeed is proud to provide the most complete and easy to use 3-Port Electronic Boost...
GrimmSpeed Boost Control Solenoid For 2002-2005 WRX
GrimmSpeed Boost Control Solenoid For 2002-2005 WRX
$136.00
The Original Direct-Fit BCS for turbo Subarus. GrimmSpeed is proud to provide the most complete and easy to use 3-Port Electronic Boost...
GrimmSpeed Black Alternator Cover for 2002-2014 WRX / 2004+ STI / 2005-2009 Legacy GT / 2004-2013 Forester XT
GrimmSpeed Black Alternator Cover for 2002-2014 WRX / 2004+ STI / 2005-2009 Legacy GT / 2004-2013 Forester XT
$94.00
ENGINEERED TO PERFECTION.Tired of being teased for your corroded alternator and boring engine bay? Step your Alternator Cover...
GrimmSpeed Red Alternator Cover for Subaru
GrimmSpeed Red Alternator Cover for Subaru
$94.00
ENGINEERED TO PERFECTION. Tired of being teased for your corroded alternator and boring engine bay? Step your Alternator...
GrimmSpeed 3mm Phenolic Thermal Spacer For Subaru
GrimmSpeed 3mm Phenolic Thermal Spacer For Subaru
$53.00
Do you know what your intake manifold sits on?...a superheated boxer engine. If you don't know already, the...
GrimmSpeed Black Thermal Coated Top Mount Intercooler for 2015+ WRX
GrimmSpeed Black Thermal Coated Top Mount Intercooler for 2015+ WRX
$999.00
Meticulous Engineering, Unparalleled Craftsmanship Replace that undersized, plastic stock intercooler with a GrimmSpeed Top Mount Intercooler Kit, featuring...
-25%
Turbo XS Hybrid 50/50 Blow Off Valve for 2015+ WRX
Turbo XS Hybrid 50/50 Blow Off Valve for 2015+ WRX
$324.98$243.45
Not too loud and not too quiet, the W15-XS-HYB from TurboXS is the valve for you if you...
-28%
Turbo XS Catback Exhaust For 2002-2007 WRX/STI
Turbo XS Catback Exhaust For 2002-2007 WRX/STI
$833.16$596.10
Since we introduced our first exhaust systems for the old “bugeye” WRX way back in 2002, we have...
Invidia Q300 w/ Rolled Titanium Tips Catback Exhaust For 2013+ BRZ/FR-S/86
Invidia Q300 w/ Rolled Titanium Tips Catback Exhaust For 2013+ BRZ/FR-S/86
$1,015.00
Invidia Q300 Exhaust: The Invidia Q300 Exhaust features a flat bottom shaped muffler design results in improved high...
Invidia Q300 Stainless Quad Tip Catback Exhaust For 2011-2014 WRX/STI Sedan
Invidia Q300 Stainless Quad Tip Catback Exhaust For 2011-2014 WRX/STI Sedan
$1,240.40
Invidia Q300 Exhaust: The Invidia Q300 Exhaust features a flat bottom shaped muffler design results in improved high...
GrimmSpeed Radiator Hose Kit For 2015+ WRX / 2014+ Forester XT
GrimmSpeed Radiator Hose Kit For 2015+ WRX / 2014+ Forester XT
$116.00
GrimmSpeed Black Cold Air Intake For 2013+ BRZ/FR-S
GrimmSpeed Black Cold Air Intake For 2013+ BRZ/FR-S
$375.00
GrimmSpeed Boost Control Solenoid For 2008+ STI
GrimmSpeed Boost Control Solenoid For 2008+ STI
$136.00
GrimmSpeed Boost Control Solenoid For 2002-2005 WRX
GrimmSpeed Boost Control Solenoid For 2002-2005 WRX
$136.00
GrimmSpeed Black Alternator Cover for 2002-2014 WRX / 2004+ STI / 2005-2009 Legacy GT / 2004-2013 Forester XT
GrimmSpeed Black Alternator Cover for 2002-2014 WRX / 2004+ STI / 2005-2009 Legacy GT / 2004-2013 Forester XT
$94.00
GrimmSpeed Red Alternator Cover for Subaru
GrimmSpeed Red Alternator Cover for Subaru
$94.00
GrimmSpeed 3mm Phenolic Thermal Spacer For Subaru
GrimmSpeed 3mm Phenolic Thermal Spacer For Subaru
$53.00
GrimmSpeed Black Thermal Coated Top Mount Intercooler for 2015+ WRX
GrimmSpeed Black Thermal Coated Top Mount Intercooler for 2015+ WRX
$999.00
-25%
Turbo XS Hybrid 50/50 Blow Off Valve for 2015+ WRX
Turbo XS Hybrid 50/50 Blow Off Valve for 2015+ WRX
$324.98$243.45
-28%
Turbo XS Catback Exhaust For 2002-2007 WRX/STI
Turbo XS Catback Exhaust For 2002-2007 WRX/STI
$833.16$596.10
Invidia Q300 w/ Rolled Titanium Tips Catback Exhaust For 2013+ BRZ/FR-S/86
Invidia Q300 w/ Rolled Titanium Tips Catback Exhaust For 2013+ BRZ/FR-S/86
$1,015.00
Invidia Q300 Stainless Quad Tip Catback Exhaust For 2011-2014 WRX/STI Sedan
Invidia Q300 Stainless Quad Tip Catback Exhaust For 2011-2014 WRX/STI Sedan
$1,240.40
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