JE Pistons NIS QR25 9:1 89.5KIT Set of 4 Pistons

If you're rebuilding the engine in your Nissan with the QR25DE motor, these JE Pistons are a solid choice for a performance build. This is a complete set of four forged pistons, designed to replace your stock ones and handle more power. They feature a 9:1 compression ratio, which is a good balance for boosted or naturally aspirated applications where you want reliable performance without sacrificing too much drivability.

JE Pistons has been making performance engine parts for a long time, and these are made in the USA from 2618 aluminum, a strong material needed for high-stress situations. They use a proprietary Forged Side Relief (FSR) design that helps reduce friction and weight, and depending on the specific application, they might include an accumulator groove to improve ring seal and reduce flutter. Some applications also get a skirt coating to cut down on friction and noise. This kit comes with everything you need to get them installed: high-quality wrist pins, locks, and JE's Pro Seal premium piston rings.

Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For any engine build aiming for increased durability and performance, especially if you're planning on adding boost or pushing the engine harder, these JE Pistons are a well-built option.