JE Pistons RENAULT CLIO RS F4R 12.8:1 Set of 4 Pistons

Starting with a 2618 aluminum forging, these JE Pistons are built for high-demand performance in your Renault Clio RS F4R. This set is designed with a 12.8:1 compression ratio, aiming to give your engine a noticeable boost in power and responsiveness. JE Pistons has been in the forged piston game for over 75 years, and they engineer these specifically for each engine and racing application, ensuring they work well with your F4R motor.

You'll find a few notable design choices here that make a difference. The proprietary Forged Side Relief (FSR) design helps cut down on friction and saves a bit of weight by using a narrower skirt and a shorter wrist pin. Depending on the specific application, you might also find an accumulator groove, which helps manage combustion gas pressure to keep the rings seated properly for a consistent seal. Some applications also include a skirt coating to further reduce friction and wear, which can also quiet down the engine a bit. Everything is forged, machined, and assembled 100% in the USA.

This kit comes complete with everything you need to get these pistons installed: high-quality wrist pins, locks, and JE's Pro Seal premium piston rings. These are a significant upgrade for anyone looking to build a high-performance F4R engine. Just a heads-up, these are not CARB approved and cannot be shipped to California.