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 Rate: 1

Part Number: 667 540 AM

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

A bench test (Equal length 4-2-1 + Taper) design: 44mm > 50mm > 55mm > Taper> 60mm

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