Description

Subaru EJ257 WRX STI Pistons Set (10.0:1 Compression Ratio) by CP Pistons

CP Pistons has designed high-performance pistons off-the-shelf, made especially for your vehicle. In most cases, these will directly replace the stock pistons. CP Pistons represent the highest quality and are engineered for maximum power. CP pistons are compatible with oversized valves and high lift camshafts.

Features

• High strength aluminum forgings
• Super lightweight designs
• Fully CNC machined and balanced to +/- 1 gram
• Wrist pins included at no extra cost
• Accumulator groove included
• Double pin oilers, force fed from oil ring
• Pick lock grooves for easy lock removal

Benefits

• Increased power and performance
• Durable, high quality construction

Applications

• 2004 – 2021 Subaru STI EJ257

What’s In The Box?

• 1 – Complete set of pistons w/ rings and pins

Warranty

• Manufacturer Standard Warranty