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Brian Crower Subaru EJ257 STI Stroker Kit

This high-performance stroker kit is designed for the Subaru EJ257 engine, enhancing its displacement to 2.71 liters. It includes a robust 4340 billet crankshaft with an 83mm stroke, ProH625+ connecting rods, and custom pistons. The kit is ideal for enthusiasts seeking increased power and efficiency.

  • 4340 billet crankshaft with 83mm stroke
  • ProH625+ connecting rods (5.141 c-to-c)
  • Custom pistons with choice of bore and compression
Make Model Year Type
Subaru Impreza 2004 WRX STI
Subaru Impreza 2005 WRX STI
Subaru Impreza 2006 WRX STI
Subaru Impreza 2007 WRX STI
Subaru Impreza 2007 WRX STI Limited
Subaru Impreza 2008 WRX STI
Subaru Impreza 2009 WRX STI
Subaru Impreza 2010 WRX STI
Subaru Impreza 2010 WRX STI Special Edition
Subaru Impreza 2011 WRX STI
Subaru Impreza 2011 WRX STI Limited
Subaru Impreza 2012 WRX STI
Subaru Impreza 2012 WRX STI Limited
Subaru Impreza 2013 WRX STI
Subaru Impreza 2013 WRX STI Limited
Subaru Impreza 2014 WRX STI
Subaru Impreza 2014 WRX STI Limited
Subaru WRX STI 2015 Base
Subaru WRX STI 2015 Launch Edition
Subaru WRX STI 2015 Limited
Subaru WRX STI 2016 Base
Subaru WRX STI 2016 Limited
Subaru WRX STI 2016 Series.HyperBlue
Subaru WRX STI 2017 Base
Subaru WRX STI 2017 Limited
Brian Crower, Inc. was created to fill the need for high quality, high performance, late model internal engine components, in stock, at very affordable prices. Stroker kits for all popular Sport Compact applications and camshafts and valve train to match. Complete packages designed to work together to deliver more horsepower and torque as well as greater reliability. Brian Crower, Inc. employs state-of-the-art CNC grinding machines to insure exacting tolerances. Small diameter camshaft grinding wheels on certain BC cam part numbers like Honda B and K Series, Nissan SR20 and Mitsubishi 4G63 deliver added valve action for greater cylinder fill rates. All BC crankshafts and connecting rods are made from the highest quality 4340 steel alloy, CNC machined and finished to the tightest industry specifications. Premium grade 6AL4V titanium retainers, 100% RC checked for hardness, and super clean chrome silicone spring wire for the highest rpm range possible. Every product line is tested on precision measuring instruments for accuracy, imperfections and metallurgy. Dyno tested and tuned for optimum results.
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