Pit Crew Racing | NB6C Hand-Bent Exhaust Manifold for Mazda MX5 Miata NB

Pit Crew Racing | NB6C Hand-Bent Exhaust Manifold for Mazda MX-5 Miata NB

This hand-bent exhaust manifold from Pit Crew Racing is engineered specifically for the NB6C Mazda MX-5 Miata, focusing on maximizing performance through careful design and extensive testing. Pit Crew Racing favors a 4-1 header configuration for its ability to deliver stronger peak power compared to traditional 4-2-1 layouts.

Through repeated testing, the optimal runner length was determined to be 650mm to the collector (pyramid top), with equal length applied to all cylinders. This design helps balance exhaust pulse timing while maintaining improved torque characteristics and strong high-RPM performance.

To further enhance exhaust efficiency, each pipe is carefully hand-bent rather than using standard mandrel sections. This meticulous process allows for smoother exhaust flow and precise layout, helping unlock the engine’s full potential across the powerband.

Specifications:

• Designed for Mazda MX-5 Miata NB (NB6C)
• Performance-focused 4-1 exhaust manifold design
• Equal runner length 650mm to collector
• Hand-bent piping for smooth exhaust flow
• Pipe diameter: 38Φ runners / 50Φ outlet
• Designed to improve both torque characteristics and peak power

PLEASE NOTE:

This is a Japan Parts Service. Some items are made to order (typically 4-8 weeks to make).

If you select air mail, expect a 4-6 week wait (could be less if in stock in Japan).

If you select container service, expect a 4-6 month wait.

All sales are final. Please expect delays and do not purchase from this section if you're in a hurry.

Check out our "In Stock Aero" page for all aero we have in stock in the USA ready to ship.