Designed around 89–94 Mazda MX5 / Miata / Eunos Roadster Mk1 (NA) with the 1.8 engine (BP), this equal-length tubular manifold uses closely matched runner lengths for balanced exhaust pulses at the collector.

The manifold uses 1.5-inch to 2.5-inch stainless steel pipework with TIG-welded joints; its runner and collector layout is designed to improve exhaust flow and support sharper engine response.

Key features

• Vehicle-specific fitment: Mazda MX5 / Miata / Eunos Roadster Mk1 (NA) — 89-94
• Equal-length runner layout for more consistent exhaust pulse timing
• 1.5″ to 2.5″ pipework · Stainless Steel construction · TIG-welded joints
• Fitting kit included

Sound and character

Equal-length runners create a smoother, more even exhaust character through the rev range.

Fitment notes

Fits 89–94 Mazda MX5 / Miata / Eunos Roadster Mk1 (NA) with the 1.8 engine (BP). Configured for the standard 370 mm adjoining section.

The layout was selected to optimise flow and support improved engine response and power.

What’s in the box?

• 1 × Equal-Length Tubular Exhaust Manifold
• 1 × Manifold Adapter Pipe
• 1 × Fitting Kit