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FEATURED PRODUCTS

Ultimate BRZ/FR-S Oil Pickup Ultimate BRZ/FR-S Oil Pickup

Ultimate BRZ/FR-S Oil Pickup

Prix Welkit $131.00
Ultimate FA20 WRX Oil Pickup Ultimate FA20 WRX Oil Pickup

Ultimate FA20 WRX Oil Pickup

Prix Welkit $131.00
Dual Reservoir Wash/Coolant 2002-2005 WRX/STi Dual Reservoir Wash/Coolant 2002-2005 WRX/STi

Dual Reservoir Wash/Coolant 2002-2005 WRX/STi

Prix Welkit $306.00
Dual Reservoir Wash/Coolant 2008-2015 WRX/STi Dual Reservoir Wash/Coolant 2008-2015 WRX/STi

Dual Reservoir Wash/Coolant 2008-2015 WRX/STi

Prix Welkit $346.00
321 Stainless Holy Header / DIY Up-Pipe 321 Stainless Holy Header / DIY Up-Pipe

321 Stainless Holy Header / DIY Up-Pipe

Prix Welkit $1,508.00
FA20 Gasket Kit FA20 Gasket Kit

FA20 Gasket Kit

Prix Welkit $66.00
Air Oil Separator 2008-2014 Subaru Impreza WRX & 2008-2018 STI Air Oil Separator 2008-2014 Subaru Impreza WRX & 2008-2018 STI

Air Oil Separator 2008-2014 Subaru Impreza WRX & 2008-2018 STI

Prix Welkit $505.00
Fumoto Quick Change Valve 16mm-1.5 Fumoto Quick Change Valve 16mm-1.5

Fumoto Quick Change Valve 16mm-1.5

Prix Welkit $29.00
FA Turbo Stud Set (4) FA Turbo Stud Set (4)

FA Turbo Stud Set (4)

Prix Welkit $24.00
Ultimate Oil Pickup EJ25 Ultimate Oil Pickup EJ25

Ultimate Oil Pickup EJ25

Prix Welkit $179.00
High Performance Oil Pan, EJ Series High Performance Oil Pan, EJ Series

High Performance Oil Pan, EJ Series

Prix Welkit $513.00
EJ20/EJ25 Performance Baffle EJ20/EJ25 Performance Baffle

EJ20/EJ25 Performance Baffle

Prix Welkit $78.00
3-Piece EJ25 Pan, Pickup, and FREE Baffle 3-Piece EJ25 Pan, Pickup, and FREE Baffle

3-Piece EJ25 Pan, Pickup, and FREE Baffle

Prix Welkit $696.00
2008-2014 WRX, 2008-2018 STi Oil Fill Relocation Tube 2008-2014 WRX, 2008-2018 STi Oil Fill Relocation Tube

2008-2014 WRX, 2008-2018 STi Oil Fill Relocation Tube

Prix Welkit $242.00
2002-2007 WRX/Sti Oil Control Valve 2002-2007 WRX/Sti Oil Control Valve

2002-2007 WRX/Sti Oil Control Valve

Prix Welkit $357.00
Fumoto Quick Change Valve 20mm-1.5 Fumoto Quick Change Valve 20mm-1.5

Fumoto Quick Change Valve 20mm-1.5

Prix Welkit $25.00
Fumoto Quick Change Valve 1/2NPT Fumoto Quick Change Valve 1/2NPT

Fumoto Quick Change Valve 1/2NPT

Prix Welkit $37.00
321 Stainless Holy Header/Up-Pipe 321 Stainless Holy Header/Up-Pipe

321 Stainless Holy Header/Up-Pipe

Prix Welkit $1,656.00
321 Stainless Holy Header w/EWG 321 Stainless Holy Header w/EWG

321 Stainless Holy Header w/EWG

Prix Welkit $2,086.00
Upper Turbo Coolant Reservoir Upper Turbo Coolant Reservoir

Upper Turbo Coolant Reservoir

Prix Welkit $319.00
High Flow Water Pump Housing EJ Series High Flow Water Pump Housing EJ Series

High Flow Water Pump Housing EJ Series

Prix Welkit $204.00
Dual Sender Adapter Dual Sender Adapter

Dual Sender Adapter

Prix Welkit $38.00
Turbo FA Aftercooler Turbo FA Aftercooler

Turbo FA Aftercooler

Prix Welkit $799.00
Turbo FA Charge Pipe Turbo FA Charge Pipe

Turbo FA Charge Pipe

Prix Welkit $336.00
WRX FA20 Air Oil Separator WRX FA20 Air Oil Separator

WRX FA20 Air Oil Separator

Prix Welkit $485.00
Twin Scroll 321 Stainless WRX FA20 Header Twin Scroll 321 Stainless WRX FA20 Header

Twin Scroll 321 Stainless WRX FA20 Header

Prix Welkit $883.00
WRX FA20 Twin Scroll Fury Turbo Kit WRX FA20 Twin Scroll Fury Turbo Kit

WRX FA20 Twin Scroll Fury Turbo Kit

Prix Welkit $2,387.00
Performance AOS Catch Can Add-On Performance AOS Catch Can Add-On

Performance AOS Catch Can Add-On

Prix Welkit $141.00
Air Oil Separator 2008-2014 Subaru Impreza WRX & 2008-2018 STI Barebones, Second Air Oil Separator 2008-2014 Subaru Impreza WRX & 2008-2018 STI Barebones, Second

Air Oil Separator 2008-2014 Subaru Impreza WRX & 2008-2018 STI Barebones, Second

Prix Welkit $420.00
Second High Performance Oil Pan, EJ Series Second High Performance Oil Pan, EJ Series

Second High Performance Oil Pan, EJ Series

Prix Welkit $350.00

Latest Blog

17
Jun
A killer blog

Why we use Swain Tech

By Nick
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Swain Tech has developed and applied high-tech coatings for engine and exhaust parts for more than two decades. Some companies have tried to imitate S
12
Nov
A killer blog

Aftercooler / Intercooler 101 (bigger isn't better?)

By Nick
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There’s a lot of debate on the forums about what makes a great intercooler; core size, cross-section, fin density, length…? So what’s important? It de
12
Oct
A killer blog

Stainless and the Racer

By Nick
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While the corrosion resistance and elevated temperature properties of the various stainless steels make them popular in the aerospace, food handling a
12
Oct
A killer blog

Know Your Subaru WRX or STi Oil Pan

By Nick
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The details to follow are specific to USDM (United States Domestic Models) part number and common names and descriptions.
01
Oct
A killer blog

Killer B Motorsport FA20 WRX Oil Pickup

By Nick
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Like many of our other products, this is a solution to a problem.
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