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 

The COBB LF BPV is a compact and lightweight by-pass valve that is capable of holding very high...
Meticulous engineering meets elegant design. For years you've been asking us for intakes, and for years we've silently...
Invidia N1 Exhaust: For a good balance of price and performance, Invidia offers the motorsport enthusiasts a strong...
-4%
Cobb Tuning Accessport For Subaru 2008-2014 WRX/STI / 2007-2013 Forester XT / 2007-2012 Legacy GT / 2007-2009 Outback XT
Simple ECU flashing with gauge package! The new in-cabin mountable Accessport V3 has a large, full color, higher...
SUBARU TURBO INLET HOSE Silicone technology allows us to design a turbo inlet hose that is better in...
Features: CNC machined from billet aluminum 5/8” Bore I.D. designed to accept -8 O-ring boss fittings 2 piece...
-24%
Turbo XS Catback Exhaust For 2004-2008 Forester XT
Turbo XS Exhaust: Designed specifically for each vehicle, Turbo XS Exhaust Systems are all 3", 304 Stainless Steel...
The Fluidampr viscous damper will reduce wear on your engines main bearings and timing gear. Therefore achieving more...
-33%
NGK Laser Iridium Spark Plugs 1422 ( 4B11 Evo X )
NGK Laser Iridium Spark Plugs ILKR8E6 Sold in packs of 4
-7%
Cobb Tuning Accessport For Subaru 2006-2007 WRX / 2004-2007 STI / 2005-2006 Legacy GT / 2004-2006 Forester XT / 2005-2006 Outback XT
Simple ECU flashing with gauge package! The new in-cabin mountable Accessport V3 has a large, full color, higher...
The COBB 3-Port Boost Solenoid (BCS) is an excellent upgrade for modern turbocharged vehicles, enabling precise boost control...
** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the...
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