Supertech Performance

Supertech Performance

Supertech Pistons 92mm STD Size Subaru WRX 2002-2005

Supertech applies over 40 years of experience in designing and manufacturing high performance racing pistons. Each piston is designed utilizing the latest in CAD software and finite element analysis...

Supertech Performance

Supertech Valve Spring Retainer Titanium RACE ONLY Subaru WRX 2002-2014 | WRX STI 2004-2019

Supertech offers CNC machined retainers manufactured from high strength and hardened aerospace certified titanium alloy. Designed to add strength while offering weight reduction, all of our titanium...

Supertech Performance

Supertech Valve Spring Retainer Kit (for spring kit SPRK-TS1015/SU4) Subaru EJ20 EJ25 WRX/WRX STI 2002-2014

Supertech Performance

Supertech Valve Spring Retainer Kit (for spring kit SPRK-TS1015/SU1) Subaru EJ20 EJ25 WRX/WRX STI 2002-2014

Supertech Performance

Supertech Valve Spring Retainer Titanium (for OEM Shims) Subaru WRX 2002-2014 | WRX STI 2004-2019

Supertech offers CNC machined retainers manufactured from high strength and hardened aerospace certified titanium alloy. Designed to add strength while offering weight reduction, all of our titanium...

Supertech Performance

Supertech Valve Spring Kit Dual Springs 100 lbs Subaru WRX 2002-2014 | WRX STI 2004-2019

Supertech designs and manufactures valve springs designed to do more than achieving the required pressure and lift. Our valve springs are designed to ensure natural harmonics of the spring for each...

Supertech Performance

Supertech Valve Spring Kit Dual Springs 82 lbs Subaru WRX 2002-2014 | WRX STI 2004-2019

Supertech designs and manufactures valve springs designed to do more than achieving the required pressure and lift. Our valve springs are designed to ensure natural harmonics of the spring for each...

Supertech Performance

Supertech Valve Spring Kit Dual Springs 70 lbs Subaru WRX 2002-2014 | WRX STI 2004-2019

Supertech designs and manufactures valve springs designed to do more than achieving the required pressure and lift. Our valve springs are designed to ensure natural harmonics of the spring for each...

Supertech Performance

Supertech Valve Spring Kit Dual Springs 64 lbs Subaru WRX 2002-2014 | WRX STI 2004-2019

Supertech designs and manufactures valve springs designed to do more than achieving the required pressure and lift. Our valve springs are designed to ensure natural harmonics of the spring for each...

Supertech Performance

Supertech Exhaust Valve Inconel +1.0mm Oversize (SHORT) Subaru WRX 2002-2014 | WRX STI 2004-2019

Supertech manufactures a variety of high performance Inconel valves for many applications. These valves are manufactured from a Nickel base super alloy material (Inconel 751 or Nimonic 80A) this...

Supertech Performance

Supertech Exhaust Valve Black Nitrided +0.5mm Oversize (SHORT) Subaru WRX 2002-2014 | WRX STI 2004-2019

Our stainless steel intake valves are manufactured from an enhanced version of EV8 (21-4N) steel. We have chosen this material specifically because it’s the highest grade of steel available and...

Supertech Performance

Supertech Exhaust Valve Black Nitrided +1.0mm Oversize (SHORT) Subaru WRX 2002-2014 | WRX STI 2004-2019

Our stainless steel intake valves are manufactured from an enhanced version of EV8 (21-4N) steel. We have chosen this material specifically because it’s the highest grade of steel available and...

Supertech Performance

Supertech Exhaust Valve Inconel +1.0mm Oversize Subaru WRX 2002-2014 | WRX STI 2004-2019

Supertech manufactures a variety of high performance Inconel valves for many applications. These valves are manufactured from a Nickel base super alloy material (Inconel 751 or Nimonic 80A) this...

Supertech Performance

Supertech Exhaust Valve Black Nitrided +0.5mm Oversize Subaru WRX 2002-2014 | WRX STI 2004-2019

Our stainless steel intake valves are manufactured from an enhanced version of EV8 (21-4N) steel. We have chosen this material specifically because it’s the highest grade of steel available and...

Supertech Performance

Supertech Exhaust Valve Inconel +0.5mm Oversize (SHORT) Subaru WRX 2002-2014 | WRX STI 2004-2019

Supertech manufactures a variety of high performance Inconel valves for many applications. These valves are manufactured from a Nickel base super alloy material (Inconel 751 or Nimonic 80A) this...

Supertech Performance

Supertech Exhaust Valve Black Nitrided Standard Size Subaru WRX 2002-2014 | WRX STI 2004-2019

Our stainless steel intake valves are manufactured from an enhanced version of EV8 (21-4N) steel. We have chosen this material specifically because it’s the highest grade of steel available and...

Supertech Performance

Supertech Exhaust Valve Inconel Standard Size Subaru WRX 2002-2014 | WRX STI 2004-2019

Supertech manufactures a variety of high performance Inconel valves for many applications. These valves are manufactured from a Nickel base super alloy material (Inconel 751 or Nimonic 80A) this...

Supertech Performance

Supertech Intake Valve Black Nitrided +1.0mm Oversize (SHORT) Subaru WRX 2002-2014 | WRX STI 2004-2019

Our stainless steel intake valves are manufactured from an enhanced version of EV8 (21-4N) steel. We have chosen this material specifically because it’s the highest grade of steel available and...

Supertech Performance

Supertech Intake Valve Black Nitrided +0.5mm Oversize (SHORT) Subaru WRX 2002-2014 | WRX STI 2004-2019

Our stainless steel intake valves are manufactured from an enhanced version of EV8 (21-4N) steel. We have chosen this material specifically because it’s the highest grade of steel available and...

Supertech Performance

Supertech Intake Valve Black Nitrided +1.0mm Oversize Subaru WRX 2002-2014 | WRX STI 2004-2019

Our stainless steel intake valves are manufactured from an enhanced version of EV8 (21-4N) steel. We have chosen this material specifically because it’s the highest grade of steel available and...

Supertech Performance

Supertech Intake Valve Black Nitrided +0.5mm Oversize Subaru WRX 2002-2014 | WRX STI 2004-2019

Our stainless steel intake valves are manufactured from an enhanced version of EV8 (21-4N) steel. We have chosen this material specifically because it’s the highest grade of steel available and...

Supertech Performance

Supertech Intake Valve Black Nitrided Standard Size Subaru WRX 2002-2014 | WRX STI 2004-2019

Our stainless steel intake valves are manufactured from an enhanced version of EV8 (21-4N) steel. We have chosen this material specifically because it’s the highest grade of steel available and...

Supertech Performance

Supertech Valve Spring and Retainer Kit (Single Spring) Ford/Mazda Duratec 2.0L/2.3L inc. Mazdaspeed 3 2007-2013 | Mazdaspeed 6 2006-2007

-Supertech valve springs are made with premium Superclean Chrome Silicon Vanadium Steel alloy for higher performance & durability at high rpms and better memory. -Computer designed to ensure that...

Supertech Performance

Supertech Intake Valves Nitride +1mm Oversize/Flat - Ford/Mazda Duratec 2.0/2.3 inc. Mazdaspeed 3 2007-2013 | Mazdaspeed 6 2006-2007

**NOTE: This valve will fit the Mazdaspeed 3 and Mazdaspeed 6 models ONLY when used with the upgraded Supertech valve guides and seals. If you are looking to replace the valves only and reuse the...