The exhaust manifold found on the 20013-2015 Scion FRS and Subaru BRZ 4 Cylinder Engine were designed to combine the exhaust gasses from each of the cylinders quickly with a manifold that was cost effective to produce. Our 4-1 off-road racing headers are designed to allow the exhaust gasses to flow more freely from each cylinder and combine in a more efficient manner. Tubing has been optimized for the 2.0L engine. This creates a reduction in cylinder backpressure and improved exhaust gas velocity. These improvements free up lost horsepower and torque. An added benefit is a more performance oriented exhaust sound.
Package Included:
1 x Racing Header Exhaust Kit
Compatible with:
2013+ Scion FR-S GT-86
2013+ Subaru BRZ
  • High Quality T-304 Stainless Steel with Computerized Mandrel-Bends for Strength and Durability
  • TIG Welded CNC Machine Flange 4-1 High Performance JDM Racing Spec. Design
  • Exceptionally Enhance Torque at High Rev RPM
  • Increase High Flow Air, Instantly Gain 10 -15 Hp. / Tq.
  • Runner Inlet/ Outlet Diameter: 1.50"/ 2.25"; O2 Sensor Insertion and Metal Gasket Included

Scion FR-S/Subaru BRZ High Performance 4-1 Exhaust Header Manifold - Toyota 86 FA20 4U-GSE

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