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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26
16K Rear spring rates
Fits the 2004-2021 Subaru WRX STI with EJ207/EJ257 6MT
OEM-equivalent engagement
Iron material
100% magnafluxed
CP Piston Set 99.5mm Bore 8.2:1 CR - Subaru EJ257 2004-2021 STI Toyota-GR-Corolla-2026 16K Rear spring ratesCP Piston Set 99. 5mm Bore 8. 21 CR Subaru EJ25 Turbo Models inc. 2006 2014 WRX 2004+ STI RallySport Direct proudly carries a great selection of CP Pistons for those of you who need a strong and durable piston in a high horsepower build. Here, you are looking at the CP Piston Set. These pistons will come provided with rings and wrist pins and are designed to sustain the perils of high horsepower and high boost builds. FEATURES: 99. 5mm bore 8. 2: 1
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