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 EJ Lightweight Crank Pulley for Subaru
GrimmSpeed EJ Lightweight Crank Pulley for Subaru
$135.00
Improve Engine Response and Faster Rev's Decreases rotational mass more than 3.5lbs over OEM (You will see much faster revs...
Cobb Tuning SS 3" Cat-Back Exhaust For Subaru 2015+ WRX/STI
Cobb Tuning SS 3" Cat-Back Exhaust For Subaru 2015+ WRX/STI
Out of stock
304 stainless steel is used throughout the exhaust construction. All components are meticulously TIG welded for outstanding appearance...
GrimmSpeed Hood Struts For 2013+ BRZ/FR-S
GrimmSpeed Hood Struts For 2013+ BRZ/FR-S
$146.00
The best hood struts, designed just for your BRZ/FRS/86.  Tired of that ugly OEM hood prop blocking your...
GrimmSpeed Radiator Shroud w/ Tool Tray For 2002-2007 WRX/STI
GrimmSpeed Radiator Shroud w/ Tool Tray For 2002-2007 WRX/STI
$62.00
3 problems. 1 clever solution. Innovative Integrated Tool Tray! Keeps Radiator Running Cooler(directs air through radiator) Built In...
IAG Performance V3 Street Series Air / Oil Separator 2006-2007 WRX / 2004-2007 STI
IAG Performance V3 Street Series Air / Oil Separator 2006-2007 WRX / 2004-2007 STI
$439.99
The IAG Performance Street Series billet aluminum Air / Oil separator (AOS) vents crankcase gasses back to the...
GrimmSpeed Air Oil Separator For Subaru 2008-2014 WRX / 2005-2009 Legacy GT
GrimmSpeed Air Oil Separator For Subaru 2008-2014 WRX / 2005-2009 Legacy GT
$315.00
An Air/Oil Separator has one job, remove the oil from the engine ventilation system so the oil does...
IAG Performance Competition Series Engine Mounts For 2002-2007 WRX / 2004+ STI / 2004-2008 Forester XT
IAG Performance Competition Series Engine Mounts For 2002-2007 WRX / 2004+ STI / 2004-2008 Forester XT
$249.99
The IAG Competition Series Engine Mounts are designed to be a streetable mount with weekend competition in mind....
-10%
HKS SUPER TURBO MUFFLER RZ34 VR30DDTT
HKS SUPER TURBO MUFFLER RZ34 VR30DDTT
$3,570.00$3,213.00
HKS SUPER TURBO MUFFLER RZ34 VR30DDTT
-10%
HKS FULL DUAL MUFFLER RZ34 VR30DDTT
HKS FULL DUAL MUFFLER RZ34 VR30DDTT
$3,400.00$3,060.00
HKS FULL DUAL MUFFLER RZ34 VR30DDTT
-10%
HKS LEGAMAX Sports FL5 K20C TYPE-R
HKS LEGAMAX Sports FL5 K20C TYPE-R
$2,720.00$2,448.00
HKS LEGAMAX Sports FL5 K20C TYPE-R
-10%
HKS Toyota GR Corolla LEGAMAX Sports Exhaust (Use w/ PN G89580-T76010-00)
HKS Toyota GR Corolla LEGAMAX Sports Exhaust (Use w/ PN G89580-T76010-00)
$2,110.00$1,899.00
HKS Toyota GR Corolla LEGAMAX Sports Exhaust (Use w/ PN G89580-T76010-00)
-10%
HKS 2022+ Toyota GR86 / Subaru BRZ Hi-Power Spec L2 Cup Exhaust
HKS 2022+ Toyota GR86 / Subaru BRZ Hi-Power Spec L2 Cup Exhaust
$1,650.00$1,485.00
HKS 2022+ Toyota GR86 / Subaru BRZ Hi-Power Spec L2 Cup Exhaust
GrimmSpeed EJ Lightweight Crank Pulley for Subaru
GrimmSpeed EJ Lightweight Crank Pulley for Subaru
$135.00
Cobb Tuning SS 3" Cat-Back Exhaust For Subaru 2015+ WRX/STI
Cobb Tuning SS 3" Cat-Back Exhaust For Subaru 2015+ WRX/STI
Out of stock
GrimmSpeed Hood Struts For 2013+ BRZ/FR-S
GrimmSpeed Hood Struts For 2013+ BRZ/FR-S
$146.00
GrimmSpeed Radiator Shroud w/ Tool Tray For 2002-2007 WRX/STI
GrimmSpeed Radiator Shroud w/ Tool Tray For 2002-2007 WRX/STI
$62.00
IAG Performance V3 Street Series Air / Oil Separator 2006-2007 WRX / 2004-2007 STI
IAG Performance V3 Street Series Air / Oil Separator 2006-2007 WRX / 2004-2007 STI
$439.99
GrimmSpeed Air Oil Separator For Subaru 2008-2014 WRX / 2005-2009 Legacy GT
GrimmSpeed Air Oil Separator For Subaru 2008-2014 WRX / 2005-2009 Legacy GT
$315.00
IAG Performance Competition Series Engine Mounts For 2002-2007 WRX / 2004+ STI / 2004-2008 Forester XT
IAG Performance Competition Series Engine Mounts For 2002-2007 WRX / 2004+ STI / 2004-2008 Forester XT
$249.99
-10%
HKS SUPER TURBO MUFFLER RZ34 VR30DDTT
HKS SUPER TURBO MUFFLER RZ34 VR30DDTT
$3,570.00$3,213.00
-10%
HKS FULL DUAL MUFFLER RZ34 VR30DDTT
HKS FULL DUAL MUFFLER RZ34 VR30DDTT
$3,400.00$3,060.00
-10%
HKS LEGAMAX Sports FL5 K20C TYPE-R
HKS LEGAMAX Sports FL5 K20C TYPE-R
$2,720.00$2,448.00
-10%
HKS Toyota GR Corolla LEGAMAX Sports Exhaust (Use w/ PN G89580-T76010-00)
HKS Toyota GR Corolla LEGAMAX Sports Exhaust (Use w/ PN G89580-T76010-00)
$2,110.00$1,899.00
-10%
HKS 2022+ Toyota GR86 / Subaru BRZ Hi-Power Spec L2 Cup Exhaust
HKS 2022+ Toyota GR86 / Subaru BRZ Hi-Power Spec L2 Cup Exhaust
$1,650.00$1,485.00
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