Naprec - Intake,Exhaust Valves Guides Set - Nissan - VR38DETT Standard Type (BECU) fuga-y50-kouki-2007-2009-na-vq25hr-v6 all Koyorad R-Series All Aluminum

all Koyorad R-Series All Aluminum Radiators are Nocolok brazed

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

The Hyper Single VF (Various Friction) features comfortable driveability with more heat durability and better heat dissipation via an integration of organic and metal friction surfaces

It became simple structure

Part Number: 667 540 AM

Naprec - Intake,Exhaust Valves Guides Set - Nissan - VR38DETT Standard Type (BECU) fuga-y50-kouki-2007-2009-na-vq25hr-v6 all Koyorad R-Series All AluminumSpecifications: 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