CP Piston & Ring Set for Subaru EJ257 WRX STi - Bore (100.5mm) - Size (+1.0mm) - CR (8.2) Set of 4 - SC7423-4
Upgrade your Subaru Impreza WRX STi EJ257 (2004-2012) with the CP Piston & Ring Set. Designed for high performance, these pistons offer:
- High-strength aluminum forgings for durability
- Super lightweight design for enhanced speed
- Precision CNC machining, balanced to +/- 1 gram
- Included wrist pins at no extra cost
- Accumulator groove and double pin oilers for optimal lubrication
- Bore size of 100.5mm and compression ratio of 8.2
Note: Sold per piston; 4 required for complete set.
Whether you're racing a Honda, Acura, Mitsubishi, Toyota, Nissan, or Subaru, CP Pistons has specially designed high-performance pistons off-the-shelf. In most cases, these will directly replace the stock pistons. CP pistons are compatible with oversized valves and high lift camshafts. Part numbers ending in a "X" are on a X-style forging for additional strength, durability and weight reduction. The X-style has a full radius dome design, high-performance rings and lightweight wrist pins. CP Pistons represent the highest quality and is engineered for maximum power. Pistons can be ordered with gas ports, skirt coating, ceramic top coating, and stronger wrist pins if desired.
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
- Bore 100.5mm
- Size +1.0mm
- Compression Ratio (8.2)
- Subaru Impreza 2004-2012
- CP Pistons are priced and sold per piston. 4 Cylinder engines will require Quantity 4 of each part #.
- No Locks Supplied, use Factory Locks
| Brand | CP Pistons |
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