Radium FPR Spring- Wide Range (Use with Radium MPR, DMR, and FST-R) Category_Fuel Management For up to 9000rpm and

For up to 9000rpm and 40psi boost Kelford Cams recommend valve spring KVS63-BTK-X

Nissan R Chassis - Skyline GT / GTS-T/ GTS-4 / GTT / GTR

The custom bracket mounts to the front RH side of the cylinder head for compatiblity with most LS engines

centered behind the rear seat (shown below without carpet installed)

Opening Pressure: 0-1 kPA

Radium FPR Spring- Wide Range (Use with Radium MPR, DMR, and FST-R) Category_Fuel Management For up to 9000rpm andReplacement internal spring for the following Radium products: MPR Regulator, P N 20 0100 00, 20 0100 01 DMR Regulator, All Versions FPD R Pulse Damper, P N 20 0176, 20 0178