Maruha × Maxim Works 4-2-1 Header · NA6CE / NA8C Miata MX-5
Maxim Works (M-BIT) has been Japan's benchmark for racing-grade exhaust fabrication for over 40 years — clients include JTCC Mugen and the original Mazdaspeed JDM exhaust program. In 2024, Maruha Motors and Maxim Works began a formal collaboration, producing this double-name header as a statement of mutual trust between two of Japan's most respected Miata specialists.
Each unit is TIG welded by hand using the "fish scale" (鱗 / Uroko) technique — a weld pattern delivering both visual beauty and superior structural integrity over conventional MIG production welding. This is not a mass-produced part.
Specifications:

4-2-1 primary pipe configuration
Full stainless steel construction with premium hand TIG fish-scale welding
Available for NA6CE (1.6L B6ZE) and NA8C (1.8L BP-ZE) — specify at time of order
Dual Maruha + Maxim Works emblem — a genuine collaboration piece
Shipped via sea freight to minimize cost; final delivery via UPS ground
Manual transmission only

Fitment: NA6CE 1990–1993 · NA8C 1994–1997 · Manual transmission only.
Made in Japan. Pre-order only — allow several months for delivery. Authorized Maruha import by Chikara Motorsports — North America's only official Maruha dealer.