High comp OEM QR piston set with with dry coating skirts and hard anodized piston tops. Bumps compression to 11.5-1. Comes with 4 pistons, rings and pins.
220whp with C1 Cams, 2JR Medusa Header and 2JR Plenum. Tune is not required but recommended. ONLY 93 OCT

Will fit OEM or 2JR Forged I or H beam rods with tapered ends.

Features include:
- High strength aluminum skirts
- Hard anodized tops
- 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