Manley Valve Locks for Nissan SR20/RB26 (13012-8) GlowShift with a single central muffler

with a single central muffler and your choice of polished or burned blue exhaust tips

the OEM crank pulley does not act as a harmonic damper found on for example traditional V8 engine dampers

Evo 8/9 Install Notes:

• Steel-Back Segmented Kevlar Disc

Manley Valve Locks for Nissan SR20/RB26 (13012-8) GlowShift with a single central mufflerManley valve locks (also called keepers) for SR20DE SR20DET and RB26DETT engines includes 16 halves for 8 valves. You'll need to purchase two for a full set for 16 valves. Vehicle Fitment: Nissan 180SX (SR20DE) Silvia S13 S14 S15 (SR20DET) Skyline GTR R32 R33 R34 (RB26DETT) Purchase Includes: 16 halves for 8 valves. Please adjust quantity as needed. More Info: Manufactured from premium quality heat treated steel and machined to exacting tolerances,