BC Brian Crower Billet Valve Keepers/Locks for EJ20/EJ25 WRX STi (BC2960) COBB 1S 2009‑2011 GTR

1S 2009‑2011 GTR

If you are unsure whether or not this location has changed

The AMS Performance team has gone the extra mile to develop innovative new solutions to problems found when adding forced induction to the 5

it is real hard to design a low backpressure fabricated tubular part to fit in the area allowed that is actually better than stock

Max System Pressure (psi): 112

BC Brian Crower Billet Valve Keepers/Locks for EJ20/EJ25 WRX STi (BC2960) COBB 1S 2009‑2011 GTRBC Brian Crower billet valve lock keepers for Subaru WRX and STi models with EJ20 and EJ25 engines. These 6 billet performance valve stem keepers or locks are designed to fit both BC and OEM retainers. They are precision machined from premium chromoly steel billet bar stock and heat treated for maximum strength, ensuring protection against shoulder shearing, a common issue with stock and lower quality brands. Vehicle Fitment: 2002 2014 Subaru WRX 2004