Intake manifold flange B6/BP MX-5 NA/NB/NBFL
Product information "Intake manifold flange B6/BP MX-5 NA/NB/NBFL"
Precision-machined for maximum performance: This CNC-machined intake manifold flange is the perfect foundation for building your custom intake manifold or ITB adapter. Ideal for motorsport applications, turbo builds, or high-performance naturally aspirated setups.
Available for all B6 and BP engines in the Mazda MX-5 NA/NB/NBFL.
Technical Details & Fitment Notes
- Compatible with all B6 and BP engines
- BP flange features two bolt patterns:
- For BP4W and BP6D cylinder heads (NB models)
- For NA cylinder heads
- Important: The intake ports on NB heads (BP4W/BP6D) are positioned approx. 10 mm higher than on NA heads.
→ For optimal performance, the flange must be mounted using the correct bolt pattern.
Material – Motorsport-Grade Quality
Manufactured from high-strength EN AW-5083 aluminum (AlMg4.5Mn) – one of the strongest alloys in the 5XXX aluminum series.
Benefits:
- Excellent structural strength
- Outstanding corrosion resistance
- No post-weld heat treatment required
- Ideal for high-performance welded fabrication
Welding Recommendation
We recommend using 5356 (AlMg5) filler rod or a comparable filler material suitable for 5XXX-series aluminum alloys.
A professional welder will typically be familiar with this specification, but confirming this in advance ensures optimal strength and durability of your intake manifold.