Our rear wheel drive K Swap 4-2-1 header provides the perfect blend of fitment, durability, and performance for the 2006-2025 Mazda Miata MX5 (NC ND) chassis, as well as other RWD K series applications.

It features 304 stainless construction, 1.75" primary runners, 2.25" secondary runners, a 2.5" collector, and 3" V-band outlet. This header is also built with our preferred cylinder pairing of runners 1-4 and 2-3.

It fits in the factory NC and ND header location, and is even compatible with the stock header heat shield. You can easily pair this with our KPower K swap 3 inch Race Exhaust for the NC chassis.

Notes:

• This header has been confirmed to fit on both LHD and RHD NC cars!
• For universal applications using our 86 transmission solution, you will need to shave down the 86 adapter and 86 transmission about 1/4 inch for the header to install correctly.
• This header has been confirmed to fit a K24 Swapped RX8