• GryphonTek Complete Exhaust Manifold Stud and Nut Kit for Mazda Miata MX-5 NA NB (1989-2005) - S35C Heat Treated Steel
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Mazda MX-5 Miata (NA/NB) Exhaust Manifold Stud & Nut Kit | High-Tensile Anti-Seize

Mazda MX-5 Miata (NA/NB) Exhaust Manifold Stud & Nut Kit | High-Tensile Anti-Seize

$69.73 USD
$69.73 USD
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JUNE HOLIDAY SHIPPING UPDATE

Please be advised that June 17 is our final shipping date before the upcoming national holiday break.

June 17 Last Dispatch
June 18-21 No Shipping
June 22 Regular Resumes

Technical support remains active during the holiday period.

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Technical Description

Fix the dreaded "ticking" sound and prevent snapped studs for good. The Mazda B6 and BP engines are legendary for their longevity, but the intense heat cycles of the Miata engine bay are a nightmare for factory exhaust hardware. Over time, OEM studs stretch, fatigue, and eventually snap—leading to power-robbing exhaust leaks and high EGTs. Replacing your manifold hardware is a mandatory step, whether you are performing routine maintenance or undertaking an NA-to-turbo conversion. This GryphonTek Signature Series Kit is the professional, high-tensile upgrade designed to maintain a permanent seal between your manifold and cylinder head.

  • S35C Heat-Treated Strength: Phosphate-coated S35C steel maintains maximum clamping force through thousands of extreme thermal cycles.
  • Internal Hex-Tip Install: Integrated 5mm inner hex allows precise seating in cramped Miata bays, eliminating "double-nutting" risks.
  • Anti-Seize Top-Lock Nuts: Copper-plated flange nuts prevent galling (seizing) and feature a mechanical lock that resists high-frequency vibration.
  • Precision Rolled Threads: Engineered for maximum thread contact in heads to prevent stripping and ensure structural integrity.

Specifications & Data

Kit Included +

• 9x S35C Heat-Treated Steel Manifold Studs (with 5mm Hex-Tip)
• 9x Copper-Plated Top-Lock Flange Nuts
• Full set covers one B6/BP cylinder head exhaust interface.

Vehicle Compatibility +

• Make: Mazda
• Models: Miata / MX-5 MK1 (NA), MK2/MK2.5 (NB)
• Engines: 1.6L (B6) / 1.8L (BP) Naturally Aspirated to Turbo conversion
• Year: 1989–2005

Product Specifications +

• Stud Material: S35C Heat-Treated Steel
• Coating: Phosphate (Anti-Rust)
• Installation Feature: Internal Hex-Tip (for hex key use)
• Nut Material: Copper-Plated Top-Lock Flange Nuts
• Installation Feature: 5mm Hex-Tip for easy seating
• Benefit: Prevents stud snapping, stretching, and power-robbing exhaust leaks

Support & Logistics

Shipping & Global Export +

Proudly exported to 75+ countries. All orders are dispatched via DHL Express, FedEx, or EMS from our Taiwan hub.

  • AU / USA: 3-5 Business Days.
  • Rest of World: 5-12 Business Days.
  • Tracking: End-to-end tracking number provided within 48H.
Import Duties & Taxes +

We’ve optimized our tax process for core markets to ensure zero hidden fees:

USA MARKET

All-inclusive pricing. No hidden duties or extra fees at delivery.

AUSTRALIA

Orders under AUD 1,000 are typically tax-free. No GST surprises.

*Other Countries: All import duties and carrier processing fees are the buyer's responsibility.

30-Day Returns & Warranty +

30-Day Returns: Return or exchange within 30 days of delivery. (Shipping at buyer's expense).

Limited Lifetime Warranty: Covers manufacturing defects. (Excludes racing misuse).

GryphonTek Engineering — Precision Fitment. Global Delivery.