Stainless Steel 4-2-1 Exhaust Manifold for Honda B16 B17 B18 B18C

Stainless Steel 4-2-1 Exhaust Manifold for Honda B16  B17  B18  B18C

The 4-2-1 performance exhaust manifold is a precisely engineered component designed for drivers seeking tangible power gains, improved throttle response, and enhanced mid-range torque. It's ideal for both spirited driving and daily use.

Constructed entirely from high-grade SS304 stainless steel, the manifold offers exceptional resistance to corrosion and extreme temperatures, ensuring long-lasting durability. The 4-2-1 geometry is optimized for smoother exhaust gas flow, reducing backpressure and enhancing engine efficiency from low RPMs.

Pipes with progressively increasing diameters (45 mm, 57 mm, 63 mm) and TIG-welded joints contribute to the manifold's durability, reliability, and high-quality finish. The 12 mm thick flanges, machined from solid material, ensure perfect fitment, complete sealing, and resistance to thermal deformation.

- Made from SS304 stainless steel for high temperature and corrosion resistance

- 4-2-1 design for optimized exhaust flow across the RPM range

- Pipe wall thickness: 1.6 mm

- Flange thickness: 12 mm

- TIG-welded for strength and aesthetics

- Lambda sensor port included

- Reduced backpressure for increased power and improved throttle response

- Enhanced torque for better engine flexibility and acceleration

- Includes 2 gaskets

Compatible with:
Honda B16 / B17 / B18 / B18C