Our RB20/RB25 Top Mount Manifold is designed to fit all RB20 & RB25 turbo engines. It replaces the restrictive standard cast iron manifold and improves exhaust gas flow thanks to its T304 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.
The top mount design incorporates a T3 turbo flange and two-bolt wastegate flange which will suit a wide array of turbo and wastegate setups.
Manufactured from T304 stainless steel
T3 turbo flange
Two-bolt external 34mm wastegate flange (external wastegate not supplied)
0.5" flanges for maximum strength and support
Ported and polished
Improved throttle response and gas flow
Gaskets, nuts, bolts and studs included
Fits Nissan Skyline R32, R33 & R34 models with RB20DET & RB25DET engines fitted.