ISR Performance SR20DET RamHorn Top Mount Manifold MVS SCH40 - Nissan 240sx S13/S14

The ISR Performance SR20DET RamHorn top mount manifold brings the turbo up and forward on an S13 or S14 240SX, giving long, equal length style runners instead of the cramped factory log. Built from thick Schedule 10 weld-el piping, it is designed for SR builds moving to a T3 flange turbo and an external wastegate.

Construction and Flanges

• Schedule 10 construction with thicker Weld-El piping for durability under sustained heat
• T3 turbocharger flange, compatible with a wide range of turbos
• 44mm MVR external wastegate flange
• Top mount orientation with ramhorn style runner routing
• Retains room for both air conditioning and power steering, unlike many aftermarket SR manifolds

Fitment

Nissan SR20DET engines in the S13 and S14 240SX chassis. The manifold uses the factory SR20DET head flange pattern.

Why Go Top Mount

A top mount manifold improves turbine inlet flow compared with the stock bottom mount or a basic top mount log, and it moves the turbo to a spot where a larger compressor housing and an external gate have room to breathe. Because this manifold keeps A/C and power steering clearance, it fits a street driven SR as well as a competition car. Plan your downpipe, wastegate dump, oil feed and drain and heat shielding around the new turbo location.

Notice

This product is intended for use in competition vehicles only, which may never be registered, licensed, or driven on public streets or highways.

All ISR Performance products are designed for off-road use only.