Supertech Inconel Exhaust Valves for Nissan RB25DET NEO (+1.00mm oversize)Supertech exhaust valves for the Nissan RB25DET NEO with the factory solid lifters, engineered for racing and high performance builds. Manufactured from heat resistant alloy engineered for the extreme thermal loads of high output and turbocharged applications. Inconel and Sodium filled valves for the most thermally demanding applications. Proper installation requires cylinder head CNC machining, verifying valve to piston clearance and installed spring

Integrated plug for mating to positive-lock connector on harness

Quiet operation with increased strength and reliability

excellent wear resistance

Thermal Insulating Spacers

Front and rear polyurethane spring eye bushings

00mm overbore

and available in a variety of bore sizes from stock to 1

14mm O-ring

black anodized

Rugged stainless 1-5/8" OD steel case (1-3/4" OD bezel) with nickel-plated male 1/8" NPT fitting

Fits 4 cylinder 2WD or AWD RB25DET RB26DETT

Fits 2WD 1989-1997