• GSC Power - Division 08 - 21 STI S3 Billet Camshaft Set | 7026S3 - JDMuscleCamsgsc7026S3

GSC Power-Division

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S3 Billet Camshaft Set

Fits: 08-21 WRX STI

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Pay over time available · Est. $36.69/payment
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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

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GSC Power-Division S3 Billet Camshaft Set
Fits: 08-21 WRX STI
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Fitment

Please Note: Engine application: Subaru EJ257 with Dual AVCS in the 2008-2021 WRX STI. Head castings must be clearanced for higher lift; built bottom end and upgraded valve springs required. Must be installed by an experienced technician.
  • 2008–2021 Subaru | WRX STI

Description

The GSC Power-Division S3 Billet Camshaft Set is a billet camshaft set for the 2008-2021 Subaru WRX STI with the EJ257 engine and Dual AVCS, built to suit high horsepower cars with a power range of 750-1000 WHP and a rev range of 4500-9500 RPMs.

  • Part number: 7026S3
  • Engine application: Subaru EJ257 with Dual AVCS
  • Power range: 750-1000 WHP
  • Rev range: 4500-9500 RPMs
  • Specific engine modifications are required to utilize the true potential of these camshafts including a built bottom-end (sleeved or closed deck recommended), built/ported heads (casting must be clearanced for higher lift), and upgraded valve springs
  • A standalone ECU or tune with speed density is highly recommended in order for proper idle characteristics
  • Check pictures for cam placement. Long nose = Left Side, short nose = Right Side
  • Due to the lobe size head castings will need to be machined down for clearance - please check during install
  • Proper break in and running high zinc oil is a must on flat tappet engines
  • Must be installed by an experienced technician
  • Check AVCS advance during install - must be done by experienced engine builder

Frequently Asked Questions

  • Does this fit my WRX STI? This camshaft set is for the EJ257 with Dual AVCS in the 2008-2021 Subaru WRX STI.
  • What is included in the box? The box contains the S3 billet camshaft set for the EJ257 Dual AVCS application.
  • What modifications are required with these camshafts? These camshafts require a built bottom-end, built/ported heads clearanced for higher lift, and upgraded valve springs, and must be installed by an experienced technician.

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