ARP Mazda Miata Main Stud Kit
Whether you're doing a complete rebuild or standard maintenance, having the right engine components is essential for your vehicle to run smoothly.
They say that to be successful, you must identify a need and fulfill it. In the early 1970s, racing enthusiast Gary Holzapfel noticed that many of his friends' broken engines were caused by fastener failure. At that time, there were no off-the-shelf studs or bolts that could address this challenge. So, leveraging his years of experience manufacturing fasteners for a major aerospace subcontractor, Holzapfel founded ARP (Automotive Racing Products). In the years that followed, the company grew from what was literally a backyard garage operation into a highly diversified manufacturer with seven entities in Southern California, totaling over 200,000 square feet. These include forging, heat treating, machining, quality control finishing, and packaging/warehousing facilities in Santa Paula and Ventura, California.
- 1990 Mazda Miata Base
- 1991 Mazda Miata Base
- 1991 Mazda Miata SE
- 1992 Mazda Miata Base
- 1993 Mazda Miata Base
- 1993 Mazda Miata LE (Doors, HP Cylinder L, Speed)
- 1994 Mazda Miata Base
- 1994 Mazda Miata M Edition
- 1995 Mazda Miata Base
- 1995 Mazda Miata M Edition
- 1996 Mazda Miata Base
- 1996 Mazda Miata M Edition
- 1997 Mazda Miata Base
- 1997 Mazda Miata M Edition
- 1997 Mazda Miata STO
- 1999 Mazda Miata 10th Anniversary
- 1999 Mazda Miata Base
- 2000 Mazda Miata Base
- 2000 Mazda Miata LS
- 2000 Mazda Miata SE
- 2001 Mazda Miata Base
- 2001 Mazda Miata LS
- 2001 Mazda Miata SE
- 2002 Mazda Miata Base
- 2002 Mazda Miata LS
- 2002 Mazda Miata SE
- 2003 Mazda Miata Base
- 2003 Mazda Miata LS
- 2003 Mazda Miata SE
- 2003 Mazda Miata Shinsen (Doors, HP Cylinder L, Speed)
- 2004 Mazda Miata Base
- 2004 Mazda Miata LS
- 2005 Mazda Miata Base
- 2005 Mazda Miata LS
- 2005 Mazda Miata Mazdaspeed (Doors, HP Cylinder L, Speed)
- 2004 Mazda Miata Mazdaspeed (Doors, HP Cylinder L, Speed)
Before You Order
〇 Regarding Import Taxes
At the Shaftoya shopping site, we pay the import taxes incurred at the time of import on your behalf, so there are no additional charges beyond the total amount paid at checkout.
〇 Checking Fitment
Our entire product database is based on North American vehicles (USDM). Please confirm whether or not these products can be installed on Japanese domestic vehicles (JDM) before placing your order. (If you are unsure if a listed product fits your vehicle, please feel free to contact us. Our support team will be happy to look it up for you.)
If you place an order without confirming fitment, we cannot accept returns due to incompatibility.
Additionally, please note that even if items are sorted by year, make, and model using the tabs on our homepage, it does not necessarily guarantee that they will fit Japanese model vehicles without modification.
All products have been translated into Japanese using translation software. There may be confusing expressions, so please contact us before ordering if you have any questions.
○ Regarding Shipping
Shipping costs are paid at the time of checkout. Shipping estimates are calculated automatically once you enter your delivery address on the checkout page. For large items such as body parts, there may occasionally be a significant difference between the automatically calculated shipping cost and the actual cost. In such cases, we will contact you individually by email.
All products are generally shipped internationally from our U.S. warehouse. Unlike domestic shipping in Japan, international shipping takes about 7 to 14 days, so please allow yourself enough time when ordering. If you are in a hurry, please contact us in advance to confirm delivery times. All products are transported via air freight; we do not use sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Essentially, all products we handle are designed and manufactured outside of Japan. Please note that they do not comply with the "Japanese Vehicle Inspection System," and we cannot provide structural strength documentation or similar paperwork for these systems. Therefore, all parts are sold for the purpose of "use on circuits, private property, or off-road," and installation and use are at your own risk.
○ Regarding Warranties
Please check the contents immediately upon arrival. Since all products are shipped internationally from outside Japan, there may be shipping damage to the packaging box or the product itself. Please understand that we will only provide returns, refunds, or replacements for products with shipping damage, defective goods, or items different from what was ordered if you contact us within 7 days of receipt. Furthermore, regarding products sold through us, all warranty-related support will be handled "exclusively through us." Please note that we do not handle support through other companies or distributors located within Japan.