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EJ257B DUAL AVCS CAMSHAFTS
For the 2008 and up Impreza WRX STi, Subaru not only updated the chassis design, but also released a 2.5L engine with dual AVCS featured on both intake and exhaust camshafts. This engine is commonly referred to as the EJ257B platform. The STi is 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. |
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Stage |
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Description |
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Part# |
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Adv. Dur. |
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Dur @ .050 |
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Lift (in) |
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Lift (mm) |
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Kit# |
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Cam Card |
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Dyno |
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Shop |
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Status |
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Track/Strip Specification
Plug and play application. Short duration for nice track manners, slight lope at idle. Excellent all purpose spec. OEM spring OK. |
BC0623 |
272°/272° |
222°/222° |
.400"/.400" |
10.16/10.16 |
BC0600 |
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In-Stock |
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Race Specification
Longer duration profile, added rpm potential. Intended for fully built engine. Tuning and ECU mods recommended. Requires kit BC0600. |
BC0624 |
280°/280° |
234°/234° |
.425"/.425" |
10.80/10.80 |
BC0600 |
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USDM EJ257 ('05-up STi) |
Stock |
256°/256° |
204°/208° |
.378"/.385" |
9.60/9.78 |
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JDM EJ254 |
Stock |
256°/256° |
211°/209° |
.374"/.371" |
9.50/9.42 |
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619.749.9018 ph
619.749.9128 fx
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| Some products listed are not legal for sale or use on emission controlled motor vehicles, RPM ranges vary on application.Warranty Information Copyright © Brian Crower Inc. All rights reserved.. |
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WARNING: This product can expose you to chemicals,
including Chromium (hexavalent compounds), lead and lead
compounds, which are known to the State of California to
cause cancer, birth defects or other reproductive harm. For
more information, visit www.p65warnings.ca.gov |
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