GSC Beehive Spring & Titanium Retainer Kit - Subaru WRX 2002-2014 / STi 2004-2020 (+Multiple Subaru Fitments)
5043
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
New products
Valve Springs & Retainers
Valvetrain Components
GSC5043 Beehive Valve Spring Kit with Ti Retainer for Subaru Turbo EJ Platforms Setup Coil Bind (in) Install Height (in) Seat Pressure (lbs) Open...
GSC Exhaust Valve Guides Stopper Style - Subaru WRX 2002-2014 / STi 2004-2020 (+Multiple Subaru Fitments)
3025-8
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
New products
Valvetrain Components
What they have done is actually quite simple, they made valve guides that fit properly, are easier to install, and shaped to help air...
GSC Intake Valve Guides Stopper Style - Subaru WRX 2002-2014 / STi 2004-2020 (+Multiple Fitments)
3026-8
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
New products
Valvetrain Components
What they have done is actually quite simple, they made valve guides that fit properly, are easier to install, and shaped to help air...
GSC Manganese Bronze Exhaust Valve Guides - Subaru WRX 2015-2020 / Scion FR-S 2013-2016 / Subaru 2013-2020 (Set of 8)
3063-8
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
New products
Valvetrain Components
GSC Power-Division Exhaust Valve Guide for FA20 (WRX/BRZ/FR-S/86) Standard sized sold as set of 8 Oversized sold individually as +0.001" and +0.003" GSC3063 Standard...
GSC Manganese Bronze Intake Valve Guides - Subaru WRX 2015-2020 / Scion FR-S 2013-2016 / Subaru BRZ 2013-2020 (Set of 8)
3064-8
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
New products
Valvetrain Components
GSC Power-Division Intake Valve Guide for FA20 (WRX/BRZ/FR-S/86) Standard sized sold as set of 8 Oversized sold individually as +0.001" and +0.003" GSC3064 Standard...
GSC P-D Chrome Polished Exhaust Valves 32mm Head (STD) - Subaru WRX 2002-2014 / STi 2004-2021 (Set of 8; +Multiple Subaru Fitments)
2011-8
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
New products
Valvetrain Components
When designing these valves, GSC used advanced 3D design and simulation programs to create a stronger and higher flowing valve head design. Prototypes were...
GSC P-D Chrome Polished Exhaust Valves 33mm Head (+1mm) - Subaru WRX 2002-2014 / STi 2004-2020 (Set of 8; +Multiple Subaru Fitments)
2013-8
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
New products
Valvetrain Components
When designing these valves, GSC used advanced 3D design and simulation programs to create a stronger and higher flowing valve head design. Prototypes were...
GSC P-D Chrome Polished Intake Valves 36mm Head (STD) - Subaru WRX 2002-2014 / STi 2004-2020 (Set of 8; +Multiple Subaru Fitments)
2012-8
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
New products
Valvetrain Components
When designing these valves, GSC used advanced 3D design and simulation programs to create a stronger and higher flowing valve head design. Prototypes were...
GSC P-D Chrome Polished Intake Valves 37mm Head (+1mm) - Subaru WRX 2002-2014 / STi 2004-2020 (Set of 8; +Multiple Subaru Fitments)
2014-8
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
New products
Valvetrain Components
When designing these valves, GSC used advanced 3D design and simulation programs to create a stronger and higher flowing valve head design. Prototypes were...
GSC P-D Chrome Polished Super Alloy Exhaust Valve 32mm Head (STD) - Subaru WRX 2002-2014 / STi 2004-2020 (Set of 8; +Multiple Subaru Fitments)
2015-8
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
New products
Valvetrain Components
Stem Diameter (mm) Overall Length (mm) Head Diameter (mm) 6.0 104.65 32.00 GSC Power-Division Super Alloy Exhaust Valves for EJ20/25 Turbo are for...
GSC P-D Polished Exhaust Valve - 29mm Head (STD) - (SET 8) 2013 Scion FR-S / Subaru BRZ
2121-8
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
New products
Valvetrain Components
GSC Power-Division Super Alloy Exhaust Valves for FA20 FRS/BRZ For those running high horsepower, high EGT set ups that need a valve that will...
GSC P-D Single Beehive Valve Spring & Titanium Retainer Kit - Subaru WRX 2015-2020 / Scion FR-S 2013-2016 / Subaru BRZ 2013-2020 / Toyota 86 2017-2020
5056
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
New products
Valve Springs & Retainers
Valvetrain Components
GSC5056 Beehive Valve Spring Kit with Ti Retainer for Subaru FA20 Setup Coil Bind (in) Install Height (in) Seat Pressure (lbs) Open Pressure, 11.0mm...
GSC P-D Single Valve Spring & Titanium Retainer Kit - Subaru WRX 2015-2020 / BRZ 2013-2020 / Scion FR-S 2013-2016 / Toyota 86 2017-2020
5756
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
New products
Valvetrain Components
GSC5756 Cylindrical Valve Spring Kit with Ti Retainer for the Subaru FA20 Setup Coil Bind (in) Install Height (in) Seat Pressure (lbs) Open Pressure,...
GSC P-D Viton 6mm Valve Stem Seal Set - Subaru WRX 2002-2014 / STI 2004-2021 (EJ20/EJ25; +Multiple Subaru Fitments)
1022
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
New products
Valvetrain Components
GSC Power-Division Viton Valve Stem Seals for the Subaru EJ257, EJ207, and EJ205 6mm seal set. These are an upgrade from the standard OEM...
GSC Single Valve Spring & Ti Retainer Kit - Subaru WRX / STI 2002-2021 (EJ Turbo Models)
5743
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
New products
Valve Springs & Retainers
Valvetrain Components
GSC5743 Cylindrical Valve Spring Kit with Ti Retainer for the Subaru Turbo EJ Setup Coil Bind (in) Install Height (in) Seat Pressure (lbs) Open...
GSC Stage 1 Billet Camshafts 266/264 - Subaru STi 2008-2020
7026S1
All
Best selling products
Camshafts & Gears
Commerceinstruments Best Selling Products
Engine Build Components
New products
GSC Power-Division billet S1 camshafts for the 2008+ STI EJ257B With Dual AVCS. Good for stock frame turbo or up to 500 WHP (GT35R)...
GSC Stage 1 Billet Camshafts 268/266 - Subaru WRX 2006-2007 / STI 2004-2007
7025S1
All
Best selling products
Camshafts & Gears
Commerceinstruments Best Selling Products
Engine Build Components
New products
GSC Power-Division billet S1 camshafts for the USDM STi and WRX with Intake only AVCS. These will not drop any low end power, and...
GSC Stage 1 Billet Camshafts 270/266 - Subaru WRX 2002-2005
7020S1
All
Best selling products
Camshafts & Gears
Commerceinstruments Best Selling Products
Engine Build Components
New products
The GSC Power-Division billet S1 camshafts for the EJ205 WRX Version 5 and 6. These will not drop any low end power, but actually...
GSC Stage 2 Billet Camshafts 272/272 - Subaru STI 2008-2020
7026S2
All
Best selling products
Camshafts & Gears
Commerceinstruments Best Selling Products
Engine Build Components
New products
GSC Power-Division billet S2 camshafts for the 08+ Subaru STi EJ257 with Dual AVCS. These cams are built to suit the higher horsepower Subis. With...
GSC Stage 2 Billet Camshafts 272/272 - Subaru WRX 2002-2005
7020S2
All
Best selling products
Camshafts & Gears
Commerceinstruments Best Selling Products
Engine Build Components
New products
GSC Power-Division billet S2 camshafts for the EJ205 WRX Version 5 and 6. These cams are built to suite the high horsepower Subis. With...
GSC Stage 2 Billet Camshafts 272/272 - Subaru WRX 2006-2007 / STI 2004-2007
7025S2
All
Best selling products
Camshafts & Gears
Commerceinstruments Best Selling Products
Engine Build Components
New products
GSC Power-Division billet S2 camshafts for the USDM STi and WRX with Intake only AVCS. These cams are built to suit the high horsepower...
GSC Stage 3 Billet Camshafts 282/282 - Subaru STi 2008-2020
7026S3
All
Best selling products
Camshafts & Gears
Commerceinstruments Best Selling Products
Engine Build Components
New products
GSC Power-Division billet S3 camshafts for the 08+ Subaru STi EJ257 with Dual AVCS. These camshafts are built to suit high horsepower cars with a power range of 750-1000...
GSC Stage 3 Billet Camshafts 282/282 - Subaru WRX 2006-2007 / STI 2004-2007
7025S3
All
Best selling products
Camshafts & Gears
Commerceinstruments Best Selling Products
Engine Build Components
New products
GSC Power-Division billet S3 camshafts for the USDM STi and WRX with Intake only AVCS. These camshafts are built to suit high horsepower cars with a power range of...
GSC Traditional Exhaust Valve Guides - Subaru WRX 2002-2014 / STi 2004-2020 (+Multiple Subaru Fitments)
3027-8
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
New products
Valvetrain Components
GSC Power-Division Traditional Exhaust Valve Guide for Subaru EJ20/25 Series (EJ205, EJ207, EJ255, EJ257, EJ257B), smooth style Standard sized sold as set of 8...
GSC Traditional Intake Valve Guides - Subaru WRX 2002-2014 / STi 2004-2020 (+Multiple Subaru Fitments)
3028-8
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
New products
Valvetrain Components
GSC Power-Division Traditional Intake Valve Guide for Subaru EJ20/25 Series (EJ205, EJ207, EJ255, EJ257, EJ257B), smooth style Standard sized sold as set of 8 Oversized...
