Japspeed SR20DET Top Mount Manifold is designed to fit all SR20DET engines. It replaces the restrictive standard cast iron manifold and improves exhaust gas flow thanks to its stainless steel, CAD-designed construction, which also improves turbo spool up and reduces turbo lag. You will also benefit improved throttle response and increased power output.
Manufactured from 2.8mm T304 stainless steel
T3 turbo flange
35/38mm external wastegate flange (external wastegate not supplied)
42mm diameter pipes
0.5" flanges for maximum strength and support
Ported and polished
Improved throttle response and gas flow
Please note: fits Nissan 180SX, PS13 Silvia, 200SX S13, 200SX S14 & S14a, S15 Silvia with SR20DET engine.