Mazda MX5/Miata Mk2 1.8 Unequal Length Exhaust Manifold, 98-00
Mazda MX5/Miata Mk2 1.8 Unequal Length Exhaust Manifold, 98-00
Mazda MX5/Miata Mk2 1.8 Unequal Length Exhaust Manifold, 98-00
Designed around 98–00 Mazda MX5 / Miata Mk2 (NB) with the 1.8 engine (BP), this unequal-length tubular manifold uses deliberately varied runner lengths to preserve a distinctive exhaust pulse.
The manifold uses 1.75-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 Mk2 (NB) — 98-00
- Unequal-length runner layout for a more distinctive exhaust character
- 1.75″ to 2.5″ pipework · Stainless Steel construction · TIG-welded joints
- Fitting kit included
Sound and character
The unequal-length layout creates a more distinctive, characterful exhaust pulse.
Fitment notes
Fits 98–00 Mazda MX5 / Miata Mk2 (NB) with the 1.8 engine (BP).
Important: The heater-core water pipe may require adjustment; refer to the fitting video before installation.
What’s in the box?
- 1 × EGR Blanking Plate
- 1 × Unequal-Length Tubular Exhaust Manifold
- 1 × Manifold Adapter Pipe
- 1 × Fitting Kit
Technical specifications
- Product type: UEL Manifold
- Tube diameter: 1.75″ to 2.5″
- Material: Stainless Steel
Vehicle compatibility
- Manufacturer: Mazda
- Model: MX5 / Miata Mk2
- Chassis code: NB
- Production years: 98-00
- Engine: 1.8
- Engine code(s): BP
Built Around the Mazda MX-5 Mk2
The second-generation Mazda MX-5 combines low weight, compact dimensions and a simple rear-wheel-drive layout. A well-matched exhaust can add a deeper, more distinctive tone while preserving the responsive character that makes the MX-5 so enjoyable to drive.
Exhaust connections and pipe routing can vary by engine and production year. Confirm the NB chassis reference, engine size and the product-specific fitment notes before ordering.
More Mazda MX-5 Mk2/Mk2.5 Exhaust Parts
| Weight | 8.75 kg |
|---|---|
| Dimensions | 22 × 89 × 37 cm |
| Tube Diameter | 1.75" to 2.5" |
| Manufacturer | Mazda |
| Part | UEL Manifold |
| Model | MX5 / Miata Mk2 |
| Engine Code | BP |
| Engine Size | 1.8 |
| Part Number | MAL-501 |
| EU Approved | No |
| Chassis Code | NB |
| Steering Side | Right Hand Drive or Left Hand Drive |
| Welding Type | TIG |
| Production Years | 98-00 |
| Important Notes | Gives a unique exhaust sound due to the unequal design. May require water pipe to heater core to be adjusted, ask for video if required. Fitment is restricted to the listed 1998–2000 naturally aspirated Mk2 1.8 applications; excludes later models and turbo variants. K-Type coverage spans wider production years; check model and year before ordering. |
| Fitting Kit Included? | Yes |
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