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 

OEM Splitter choking your TMIC? Fix that. Tired of popping your hood only to have that ugly OEM...
OEM Splitter choking your TMIC? Fix that. Tired of popping your hood only to have that ugly OEM...
OEM Splitter choking your TMIC? Fix that. Tired of popping your hood only to have that ugly OEM...
Your Subaru’s cooling system is only as good as its weakest link, commonly that’s the old, dry-rotted OEM...
Your Subaru’s cooling system is only as good as its weakest link, commonly that’s the old, dry-rotted OEM...
Your factory crank pulley is responsible for transferring energy from your crankshaft to your water pump, a/c compressor...
Real 10whp gains in 30min with no tuning. Design requirements for this intake were simple: The intake must...
Meticulous engineering meets elegant design. For years you've been asking us for intakes, and for years we've silently...
With so many catback options available, our goal was to create a unique, refined sound in an extremely...
Do you know what your intake manifold sits on?...a superheated boxer engine. If you don't know already, the...
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Turbo XS RFL Blow Off Valve for 2008-2014 WRX
The WRX08-RFL or Really F#$%!@ Loud is designed specifically for the owner of a 2008+ WRX who wants...
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Turbo XS Hybrid 50/50 Blow Off Valve for 2008-2014 WRX
TurboXS releases the first Hybrid Blow Off Valve designed specifically tuned for the 2008+ Subaru WRX or 2004+...
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