Naprec - Intake,Exhaust Valves Guides Set - Nissan - VR38DETT Standard Type (BECU) fuga-y50-kouki-2007-2009-na-vq25hr-v6 Spring Rates (Kg): 12 or

Spring Rates (Kg): 12 or (9/10/11/14/16/18)

It became simple structure

- Max Height Adjustment Range: -69mm ~ 7mm

Part Number: 667 540 AM

Bore (mm): 90 ( 1)

Naprec - Intake,Exhaust Valves Guides Set - Nissan - VR38DETT Standard Type (BECU) fuga-y50-kouki-2007-2009-na-vq25hr-v6 Spring Rates (Kg): 12 orSpecifications: Manufacturer: Naprec Reference Number: NAP VG VR38 Naprec is simply the best Engine Machinist in Japan, With thousand years of experience, they supply the biggest tuning shop in Japan. The valve guide was a thing where the inner diameter part was bent when press fitted and replaced. Our valve guide is manufactured in a shape that causes almost no bending due to our own know how, so it can be used with almost no inner diameter