Exhaust Manifold for RB20 RB25 RB26 DET T4 Top Mount Twin Scroll 44mm Nissan GTR

The exhaust manifold is designed for RB20, RB25, and RB26 DET engines used in Nissan Skyline GTR models. It offers a solution for drivers and tuners seeking faster turbo spool-up and maximum power in the low and mid RPM range.

The optimized runner geometry ensures smooth exhaust flow with minimal back pressure, improving engine response and efficiency across the entire rev range. Twin-scroll technology allows the turbocharger to spool faster and deliver substantial power gains throughout the powerband.

The manifold accommodates dual 44mm external wastegates and features a T4 turbine flange, ensuring precise boost control even under extreme conditions.

Product Features:

• Material: AISI 321 stainless steel with titanium additive for enhanced structural stability at high temperatures
• Manifold wall thickness: 3 mm
• Designed for RB20 / RB25 / RB26 DET engines
• Top Mount T4 Twin Scroll construction
• CNC ported head flange for optimal flow and sealing
• Perfectly machined sealing surfaces
• Dual 44mm wastegate flanges
• Includes full gasket and hardware kit
• Engineered for improved throttle response and maximum performance

Note:
The RB26 T4 Twin Scroll manifold does not fit the Nissan R32 with air conditioning. This can be resolved by removing the AC or using an R33 GTR AC compressor.