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 

If you're making enough power to surpass the limits of your factory blow off valve, or if your...
HKS knows how to develop exhaust systems to better suit turbocharged platforms. The increased piping diameter, straighter piping...
-33%
NGK Iridium Spark Plugs One Step Colder 2667 - Subaru WRX 2002-2005
NGK Laser Iridium Spark Plugs BKR7EIX Sold In 4 packs
-17%
Cobb Tuning Accessport For 2002-2005 WRX
Simple ECU flashing with gauge package! The new in-cabin mountable Accessport V3 has a large, full color, higher...
-12%
Cobb SUBARU GESI CATTED 3" DOWNPIPE WRX/STI 2002-2007, FORESTER XT 2004-2008
The COBB Tuning GESi Catted 3" Downpipe begins with a CAD designed cast bellmouth that smoothly blends air...
Fits *2008-14 Subaru WRX, 2008-2021 Subaru STIPackage Includes:(x1) Fuel Line Kit(x1) IAG Fuel Rails(x1) Aeromotive Adjustable Fuel Pressure...
Features: Heavy Gauge Steel Tubing That is 3x Thicker than OE 3/8" 1018 CR Steel Flange 12 Gauge...
This C.A.R.B. approved intake and integrated airbox looks great and has the combined benefits of a short ram...
These blow off valves are design to be a better than OEM replacement, yet outperform when it comes...
All aluminum construction Heli-arc welded for stronger enforcement along aluminum connections Thicker core Precise tube and fin alignment...
The COBB Air/Oil Separator is placed within your Subarus crankcase ventilation system and helps to prevent oil vapors...
Mishimoto 08-14 Subaru WRX / 08-15 STi / 05-09 Legacy Manual Aluminum Radiator. For Racing Application The X...
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