Introducing the Maruha Motors Racing Split Header (RS Header)
Preorders Now Open | Limited Production
The Maruha Motors Racing Split Header (RS Header) is here — a long-awaited, new-generation exhaust header developed specifically for 90-97 Mazda MX-5 Miata models.
Designed entirely by Maruha Motors based on a revised design from 2006, the RS Header represents a focused return to what matters most: smart engineering, real-world durability, and performance you can feel every time you open the throttle. Manufacturing is handled to Maruha’s specifications by Maxim Works, ensuring consistent quality and precise fitment.
At the core of the RS Header is its double slip-joint construction. This design allows the header to naturally accommodate heat expansion and engine movement, reducing stress under aggressive driving and long-term use. It’s a detail you won’t see at a glance—but one you’ll appreciate after countless heat cycles, track days, and spirited drives.
For the first time, this header is available for NA6 1.6L (1990–1993) models, in addition to NA8 1.8L (1994–1997), making this one of the most exciting Maruha exhaust releases for early Miata owners in years.
Built from high-quality stainless steel with carefully formed tubing and precision-machined flanges, the RS Header is a true upgrade over the factory exhaust manifold—designed to unlock smoother exhaust flow, sharper response, and long-term confidence.
⚠️ Production of the RS Header is extremely limited, and availability will be tight from the very first run. Once this initial batch is spoken for, restock durations are not guaranteed.
If you’ve been waiting for a no-compromise, Maruha-developed header for your NA Miata, this is the one to secure.
Key Features
Official Maruha Motors Racing Split Header (RS Header)
Designed entirely by Maruha Motors
Manufactured by Maxim Works in Japan to Maruha specifications
Double slip-joint construction for superior durability and thermal compliance
2 versions, NA6 (1990–1993) and NA8 (1994–1997) Mazda Miata
High-quality stainless steel construction
Precision fitment with OEM-level mounting accuracy
Built for naturally aspirated street, track, and spirited driving
*** This is a PRE-ORDER only. Chikara Motorsports has a guaranteed allocation for the first batch of RS headers. Expected product completion from Maxim Works is May 2026. Expected sea freight arrival to Vancouver BC is July/August 2026. If you feel you cannot wait that long or accept possible delays, please do not place an order!
** If you are willing to pay an extra premium to have this item shipped via AIR the moment it is available, please email us directly.
*The NA8 1.8L version is manufactured to Japanese MX-5 Roadster specs. Therefore, there IS NO EGR reroute! A capping bung for the EGR outlet will be provided by us. If you are not running an aftermarket ECU, there will be an engine check light.
