- Description
- Fitment
- Refund Policy
The MMX Performance BMW B58 / B57 Billet Oil Filter Housing Cap is a precision-engineered upgrade designed to eliminate the well-documented weaknesses of the factory plastic housing. OEM plastic caps are prone to cracking, deformation, and inconsistent sealing during routine servicing, which can lead to oil seepage and long-term reliability concerns. The MMX billet solution provides a permanent, structurally robust replacement that improves sealing integrity and overall service confidence.
Machined from a solid block of 6061-T6 aerospace-grade aluminum, the MMX oil filter housing cap delivers exceptional strength while maintaining a lightweight design. The component is finished in a durable Midnight Black anodized coating, providing corrosion resistance and a refined OEM+ appearance that withstands repeated heat cycles and regular maintenance intervals.
From an engineering standpoint, the MMX housing cap incorporates a fully integrated oil pressure bypass system within the billet structure. This eliminates the need to transfer or reuse the fragile OEM plastic bypass valve, a process that often results in component damage on alternative aftermarket solutions. By integrating this function directly into the cap, MMX ensures consistent oil flow, stable pressure regulation, and long-term durability without reliance on failure-prone factory components.
Installation is straightforward and is ideally performed during a routine oil service. The cap installs directly in place of the factory unit and includes a factory-specification O-ring to ensure proper sealing and leak-free operation. It remains fully compatible with OEM oil filters and is optimized for use with the MMX stainless steel lifetime oil filter, providing a complete solution to address the known limitations of the B58 oil filtration system.
Designed for both daily-driven vehicles and high-performance applications, the MMX Performance Billet Oil Filter Housing Cap is a critical upgrade for owners seeking improved durability, consistent oil system performance, and a cleaner, more refined engine bay.
Product Details
- CNC-machined from 6061-T6 billet aluminum
- Direct replacement for OEM plastic oil filter housing cap
- Integrated oil pressure bypass system
- Improves sealing integrity and eliminates cracking risk
- Includes factory-specification O-ring for proper sealing
- Finished in Midnight Black anodizing for durability and OEM+ appearance
- Compatible with OEM and MMX performance oil filters
- SKU: MMR17-1501
Vehicle Applications
Related Products
Notes
- BMW models equipped with B58 3.0L petrol engines
- BMW models equipped with B57 3.0L diesel engines
- Toyota GR Supra 3.0 (B58 engine)
- Recommended to install during routine oil service
- Prolonged exposure to extreme heat may cause slight changes to anodized finish
- Finish variation does not affect performance or functionality
- Includes a 1-year manufacturer warranty against defects in materials and workmanship
- Designed and tested in the United Kingdom
Returns
Our policy lasts 14 days. If 14 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange. All items are subject to 15% restocking fee from the manufacturer.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
Additional non-returnable items:
Gift cards
Downloadable software products
To complete your return, we require a receipt or proof of purchase.
Please do not send your purchase back to the manufacturer.
There are certain situations where only partial refunds are granted (if applicable)
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping to you will be deducted from your refund. If your original order qualified for free shipping, the actual cost of shipping the item to you will still be deducted from your refund.
If you would like to start a return please click here
Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping to you will be deducted from your refund. If your original order qualified for free shipping, the actual cost of shipping the item to you will still be deducted from your refund.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund yet, please contact us at info@amtuning.ca.
Sale items (if applicable)
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.
Labor Fees (if applicable)
AM Tuning Canada is not responsible for, and shall not be liable for, any labor fees, installation charges, removal charges, diagnostic fees, or other service-related costs incurred by the customer or any third party in connection with the installation, removal, modification, servicing, or use of any products purchased from AM Tuning Canada. Unless expressly agreed to in writing by AM Tuning Canada, all such labor and service costs are the sole responsibility of the customer.
Exchanges (if applicable)
To start an exchange, click here
Non-refundable items
The following items are non-refundable and non-returnable once purchased: oils, fuel or oil additives, filters, tuning cables, OBDeleven products, Braum seats, spark plugs, coil packs, and similar consumable, wheel spacers, wheels bolts, license plate brackets, electronic tuning components and any other product subject to discretion of AM Tuning Canada.
Other products from brands such as MHD, Bootmod3, Ecutek, Braum racing, Novitec are also non-refundable and non-returnable.
All sales of these items are final and are subject to the policies and discretion of AM Tuning. By completing a purchase, the customer acknowledges and agrees to these terms.
