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GSC P-D EJ257 Beehive Valve Springs w/ Titanium Retainer Valvetrain Kit  (Use factory spring seats) - Black Ops Auto Works
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GSC P-D EJ257 Beehive Valve Springs w/ Titanium Retainer Valvetrain Kit (Use factory spring seats)

GSC5043
GSC5043
Valve Springs, Retainers
20+ Units In Stock - Ships Next Business Day
$ 470.49 $ 399.92
$ 399.92

SKU: 5043

GSC P-D EJ257 Beehive Valve Springs w/ Titanium Retainer Valvetrain Kit for 1999-2015 Subaru Impreza WRX STI (Use factory spring seats)

The GSC Power-Division Beehive Valve Spring Kit with Ti Retainer delivers precise valve control for DOHC Subaru Turbo EJ257 platforms including Impreza WRX STI models. This kit includes 16 beehive valve springs and 16 titanium retainers for complete valvetrain reliability under high boost and RPM. Engineered spring rates support aggressive cam profiles while reducing mass for faster engine response.

Key Features

  • Beehive Design: Tapered progressive wire thickness eliminates harmonics for consistent valve motion up to 10,000 RPM
  • Titanium Retainers: Forged 6AL-4V titanium reduces rotating mass by 40% over steel for quicker revving and less wear
  • Precise Spring Rates: Seat pressure 115 lbs at 1.787in open 280 lbs at 1.030in lift rate 140 lbs/in max lift 1.060in coil bind 1.130in
  • Direct Fitment: Bolts on with factory spring seats no head machining needed retains OEM keepers
  • Full Kit Contents: 16 springs 16 retainers supports stock heads or GSC S1/S2 cams in EJ257 applications

Product Notes

  • Use factory spring seats retainers and valve locks/keepers
  • Inspect valve guides and seats prior to installation for optimal performance
  • Ships in protective foam-lined box to ensure components arrive undamaged

Installation Notes

  • Professional installation recommended.
  • Valve spring tool required for safe removal and installation
  • Compatible with factory hardware torque to OEM specs

This Part Fits

Year Make Model Submodel
2005 Saab 9-2X Aero
2009-2010 Subaru Impreza 2.5 GT
2006-2011 Subaru Impreza 2.5i
2010-2011 Subaru Impreza 2.5i Premium
2012-2014 Subaru Impreza Base
1999-2001 Subaru Impreza L
2012-2014 Subaru Impreza Limited
1999-2004 Subaru Impreza Outback
2005-2011 Subaru Impreza Outback Sport
2012-2014 Subaru Impreza Premium
1999-2005 Subaru Impreza RS
2012-2014 Subaru Impreza Sport Limited
2012-2014 Subaru Impreza Sport Premium
2002-2004 Subaru Impreza TS
2002-2014 Subaru Impreza WRX
2006-2007,2010-2014 Subaru Impreza WRX Limited
2009-2014 Subaru Impreza WRX Premium
2004-2014 Subaru Impreza WRX STI
2007,2011-2014 Subaru Impreza WRX STI Limited
2010 Subaru Impreza WRX STI Special Edition
2006-2007 Subaru Impreza WRX TR
2015 Subaru WRX STI Base
2015 Subaru WRX STI Launch Edition
2015 Subaru WRX STI Limited

Why Choose GSC Power-Division?

  • Trusted by Pro Touring and drag racing teams in STI time attack builds
  • CNC machined components with heat treated springs for consistent performance
  • Tested to 10K RPM bursts on dyno for real world durability

Frequently Asked Questions

  • Q: Will this kit fit my 2004-2014 Impreza WRX STI EJ257 engine?
    A: Yes fits all EJ257 DOHC turbo heads in listed models uses factory seats and keepers for plug and play install
  • Q: What materials are used in the springs and retainers?
    A: Beehive springs from premium chrome silicon steel titanium retainers are aerospace grade 6AL-4V for strength and light weight
  • Q: What warranty coverage is provided?
    A: Lifetime warranty on valve springs against failure when paired with GSC retainers proper installation required

Shipping & Handling

  • Method: UPS Ground or USPS Priority
  • Availability: In stock - ships same or next business day
  • Packaging: Foam inserted box 11in x 8in x 5in
  • Weight: 4.8 lbs

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