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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
Quiet operation
New OEM STI connecting rods
2015 Subaru WRX STI 2
There are two different options for the expansion connectors
GSC Power-Division high pressure CONICAL Spring set with Titanium Retainer for the Subaru EJ Engines CDI Systems Quiet operationThe GSC Power Division High Pressure Conical Valve Spring with Ti Retainer for Subaru EJ platforms includes 16 titanium retainers, 16 conical valve springs, and 16 chromoly valve spring seats. High RPM and High Boost levels are not a problem on these kits. True conical valve springs are not a new concept and are industry proven to provide several key advantages over traditional spring designs. A major advantage of conical springs vs. traditional
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