BC Brian Crower 272/276/280 Cams for EJ25 Subaru WRX (BC0621/BC0620/BC0622)
EJ257 / EJ255 CAMSHAFTS A series of low-volume versions with even greater power and grip were built by Subaru's in-house modifier, Subaru Tecnica International (STi). STi versions of the Impreza, which produced 280 PS (206 kW) from new, are often raced, largely unmodified, in the Group N class in various rally championships to great success. Introduced in 1994, the STi has proven to be a very popular high-performance machine in the Japanese domestic market. Introduced to the United States in 2004, the US model STi features the larger displacement 2.5L (EJ257) that features AVCS. These camshafts will also fit the 2006-2007 GDF/GDB/GDG WRX and STi Impreza (also known as the V9 or "Hawk Eye") in the UK.
Vehicle Fitment:
2004-2007 Subaru STi
2006-2014 Subaru WRX
(EJ255/EJ257 with Single AVCS )
Purchase Includes:
Pair of Intake and Exhaust Cams
Assembly Lube
Recommendations:
Stage 2+ and Stage 3 cams require BC0600 Valve Springs and Retainers
Tuning and ECU mods are recommended
| Part Number | Adv Dur | Dur @ .050 | Valve Lift (1:1) | Valve Lift (mm) |
| BC0621 | 272°/272° | 222°/222° | 0.400"/0.400" | 10.16/10.16 |
| "Stage 2" Track/Strip Specification Plug and play application. Short duration for nice street manners, slight lope at idle. Excellent all purpose spec. OEM spring OK. |
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| BC0620 | 276°/276° | 232°/232° | 0.422"/0.405" | 10.72/10.29 |
| "Stage 2.5" Track/Strip Specification Added lift profile with faster action ramps for quicker spool up rates. Tuning and ECU mods recommended. Requires BC0600 kit. |
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| BC0622 | 280°/280° | 234°/234° | 0.425"/0.425" | 10.80/10.80 |
| "Stage 3" Race Specification Longer duration profile, added rpm potential. Intended for fully built engine. Tuning and ECU mods recommended. Requires kit BC0600. |
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Notes:
- Bucket Diameter: 1.200"
- Intake camshafts are setup for AVCS operation. The above cams WILL WORK with AVCS. If running non AVCS setup is desired, you must install the four set screws (located in a plastic bag attached to the cam bag) in the front of each intake cam (dowel pin side) using a 2.5mm Allen wrench and LocTite. This will not allow oil to actuate the Active Valve Control System. These cams do not fit the 2008-up STi with dual AVCS.
Pictured:
Photos are for reference
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