Exhaust valve Kit NISSAN 300/VG30D 3.0L DOHC/300 ZX 90-96 Porsche Ryco A1798

Ryco A1798

6L L4 Diesel 2010-2011 90BHP Citroen C3 Picasso 1

1x 081227B Shift Lever Stabilizer Bush

5L ALL ALL ALL J35A5 From 2/2003 Thru 7/2006 Production Date  YD1 Chassis  VTEC  Stock Plug/Heat Range: ISO:5 1990 - 2005 ACURA NSX V6 3

Exhaust valve Kit NISSAN 300/VG30D 3.0L DOHC/300 ZX 90-96 Porsche Ryco A1798The production of our race valves begins with a one piece forging where the valve head is forged in a slow two step process to maintain a good material flow. Then it is machined on the CNC in several stages to ensure the precision of the final dimensions. Then, we perform another thermal treatment for relaxation, followed by nitride curing (or coating process depending on the application). Finally, we perform one more grinding followed by a patented