AMS Performance Intake Manifold Toyota GR Supra 2020+ | AMS.38.08.0002-1

As horsepower numbers rise, so do temperatures through the GR Supra’s intercooling system. In order to cool down that hot intake charge air coming from the turbocharger, you need a highly efficient heat exchange process which is where the AMS Performance 2020+ Toyota GR Supra Intake Manifold comes in. With our unique parallel twin core design, we are able to route coolant flow in the most efficient way possible giving us unparalleled cooling efficiency over the competition. The AMS Performance 2020+ Toyota GR Supra Intake Manifold also provides for an auxiliary port fuel injection solution by way of its flush mounted -8AN fuel rail, giving the atomized fuel a nearly unimpeded path to the combustion chamber. Our superior engineering yields superior results.

• 1250+ HP RATED PARALLEL AIR-TO-WATER INTERCOOLER CORES FOR SUPERIOR COOLING

• AUXILIARY PORT FUEL RAIL WITH -8AN SIDE PORTS FOR EXPANDED FUELING OPTIONS

• COMPUTATIONAL FLUID DYNAMICS (CFD) VERIFIED DESIGN FOR EVEN AIRFLOW DISTRIBUTION

• PROPERLY ANGLED PORT INJECTION FOR IMPROVED FUEL ATOMIZATION

• 135% LARGER CORE AREA COMPARED TO OEM

• COMPATIBLE WITH AMS 3″ AND OTHER OEM-STYLE CHARGE PIPES

• 1″ INNER DIAMETER COOLANT HOSES PROVIDE 148% SIZE INCREASE OVER OEM

• COOLANT PORT DESIGN ALLOWS FOR CUSTOM ICE TANK IMPLEMENTATION

• THREE (3) EXTRA -4AN ORB PORTS LOCATED ON PLENUM FOR VACUUM SOURCE POINTS

• INCLUDES ALL ANCILLARY COMPONENTS, INCLUDING ALL HARDWARE, LINES, AND FITTINGS

ENGINEERED TO WIN

The AMS Snailworks© Engineering Team has designed the AMS Performance 2020+ Toyota GR Supra Intake Manifold to be a direct bolt-in install without hacking up your prized possession. The manifold is fully compatible with A/C, power steering, oil filter cap, and all other factory options, and is easily reversible back to stock with a few inexpensive replacement parts. The design of the new AMS Performance 2020+ Toyota GR Supra Intake Manifold positions it to be the best performing, highest quality, and easiest to install manifold on the market.

Our AMS Snailworks© Engineering Team has spent hundreds of R&D hours refining the AMS Performance 2020+ Toyota GR Supra Intake Manifold to be as efficient and effective as possible. Utilizing Computation Fluid Dynamics (CFD) analysis software, our team has been able to verify the geometry of our A356 T6 cast aluminum plenum and runners to optimize mass flow rate distribution to each cylinder. By taking this additional design step, our engineers have gone the extra mile and allowed for an equalization of airflow to within .5% to each individual cylinder port!

PROPERLY IMPLEMENTED PORT FUEL INJECTION

The 3.0L B58 engine found in the GR Supra is a BMW-sourced German engineering marvel. Unfortunately, the factory direct injection system is not conducive to making high horsepower or using ethanol flex fuel, which has led many owners to install port fuel injector spacers sandwiched between the cylinder head and factory intake manifold. During the R&D process of the AMS Performance 2020+ Toyota GR Supra Intake Manifold, our team knew they wanted to incorporate an optimally designed secondary port fuel injection solution as an option for customers.

By moving the injector ports onto the manifold runners themselves, we are able to properly angle injector nozzles directly at the intake valve and combustion chamber instead of at the wall of the intake runners where fuel can puddle. Our team went one step further with this concept by flush mounting the -8AN fuel rail to the manifold and pocketing the runners to allow the injectors to have an even more direct path to spray perfectly atomized fuel to the engine for maximum combustion efficiency.

PARALLEL SPLIT CORE DESIGN FOR OPTIMIZED COOLANT FLOW

The most significant design element of the AMS Performance 2020+ Toyota GR Supra Intake Manifold is our parallel split core design that allows us to route coolant from the middle of the unit instead of from one end to the other. This coolant flow routing reduces water pressure drop and increases flow rate at a given head pressure, meaning coolant can easily move through the system and expel heat efficiently. This split coolant flow design delivers consistently cool water to every cylinder by matching the coolest water (fresh from the heat exchanger), with the coolest air (furthest point through the intercooler), to maximize heat transfer across the length of the cores.

The 1250+ HP rated twin cores themselves have also been optimized for not just coolant flow, but for airflow throughput as well as reduced pressure drop. The AMS Snailworks© Engineering Team has struck a fine balance between airflow to the engine, and allowing the heat exchange process to cool that air. This is done by optimizing the dimensions of our proprietary parallel cores to allow for intercooler design elements like our custom spec fin densities on both coolant and air sides, fin height, and water passage size.

INCLUDES

At JDMuscle, we understand that fast and reliable shipping is crucial. With multiple distribution centers across the nation, most in-stock items are shipped within 1-2 business days. On average, you can expect delivery within 1-5 business days for in-stock items. Please note, however, that some products may ship directly from vendors, which could result in additional delays. Products sourced from overseas may also take longer to arrive.

Free Shipping over $199 Policy

• Free shipping is available only for the 48 contiguous states in the U.S.
• Ground shipping applies to regular-sized items only.
• Oversized items such as lips, hoods, and trunks requiring freight shipping are not included in the free shipping program.
• Some manufacturers may impose a shipping surcharge, which will be excluded from the free shipping program.
• The most accurate shipping costs will be displayed at checkout. If you believe the shipping cost is incorrect, please contact us at sales@jdmuscleusa.com for further review.

Carriers

We ship via FedEx, UPS, USPS, and DHL. While we strive to use the most efficient option, we cannot guarantee which carrier will deliver your order. Your items may arrive in multiple packages through different carriers.

Processing Time and Shipping Cut-off

Orders typically take 24 hours to process, with shipping cut-off at 3:00 PM EST. Transit times vary based on location and carrier. Some items, especially those requiring freight shipping, may have extended processing and delivery times. For freight shipping inquiries, contact us at sales@jdmuscleusa.com.

International and Special Shipping Considerations

• International orders are subject to higher shipping fees. If you would like to review your shipping cost, email us at sales@jdmuscleusa.com with your full address and items you plan to purchase.
• In some cases, shipping costs may be incorrectly calculated for international or oversized items. We reserve the right to adjust the shipping fee and will work with you to negotiate a fair cost if needed.
• Customers can challenge and request a review of international shipping fees, and we’ll do our best to find a lower rate where possible.
• Customs Fees & Import Taxes: The shipping charge you pay does not include customs fees or import taxes. These charges vary by country and are the customer’s responsibility. Please check with your local customs office for more details before placing an order.
• Shipping Cost Adjustments: Shipping rates fluctuate, and while we strive to provide the most competitive rates, there may be instances where the shipping cost you paid is significantly lower than the actual cost. In such cases, we reserve the right to request the difference to ensure we cover our basic expenses. We appreciate your understanding and will always aim to keep shipping costs as affordable as possible.

Address Modifications and Fees

• Any modifications to a shipping address after an order is placed may be subject to additional fees.
• For single, small packages, the flat fee is $20. For larger or multiple packages, the fee may be up to $60 or more.

Freight Shipping Guidelines

• Freight shipments require you to be present at the time of delivery.
• The delivery driver may provide a delivery receipt (Bill of Lading). It is crucial to inspect the shipment before signing.
• Carefully check the packaging for any visible damage (dents, punctures, rips) and notate it on the Bill of Lading.
• Open the package and inspect the product itself. If damage is found, document it in detail on the Bill of Lading, take photos, and contact the shipping company to initiate a damage claim.
• Do not refuse the shipment. Contact us at sales@jdmuscleusa.com for guidance.
• If the delivery driver is unable to wait for inspection, note this on the Bill of Lading.

Failure to document damages before signing the Bill of Lading will void any claims for refunds or replacements.

Pre-Installation Inspection Policy

We strongly recommend inspecting all parts or items upon arrival before installation. If you identify any damage, imperfections or missing components, report them immediately to sales@jdmuscleusa.com. Do not install the item. Please note that reports of damage, defects, imperfections or missing components after installation will NOT be honored.

Package Protection

We do our best to ensure your items arrive to you safely but sometimes things happen. If you utilized our Checkout+ feature, rest assured that your package is protected! With package protection, in the event that your package is lost, stolen, or damaged while in transit, we will replace it free of charge. To start a shipping claim, please click here.

Need Assistance?

If you have any concerns about shipping costs or transit times, or if you notice discrepancies during checkout, feel free to reach out to us at sales@jdmuscleusa.com. We’re happy to assist you and ensure a smooth delivery experience.

Our policy lasts 30 days. If 30 days have passed since your purchase, unfortunately, we can’t offer you a refund or exchange. To initiate a return, please email us at sales@jdmuscleusa.com.

Eligibility for Returns

✅ Items must be unused and in the same condition as when received.
✅ Items must be in their original packaging.

Non-Returnable Items

❌ Gift cards
❌ Special-order or custom products

How to Initiate a Return

📧 Include the following details in your return request email:

Order Number

Item(s) to be returned

Reason for return

Important Notes:

Do NOT send your purchase back to the manufacturer.

Do NOT return any items without first setting up a return request with us.

Partial Refunds

Partial refunds may be granted under the following conditions:

⚠️ Items not in original condition, damaged, or missing parts not due to our error.
⚠️ Items returned more than 30 days after delivery.

Restocking Fees

Some manufacturers may charge a restocking fee, which includes but not limited to:

ManufacturerRestocking Fee

ESR30%

JDMuscle15%

PLM & Option Lab 20%

Cancellations

Before placing an order, please confirm availability.

Cancellations within 7 days may be subject to fees to cover third-party transaction costs.

Once the order has been processed (packaged or tracking generated), cancellations are not allowed. Eligible items may be returned instead.

Special-order items cannot be canceled.

Refund Process

🔄 Once your return is received and inspected, we will notify you of the refund status.
💳 Approved refunds will be credited back to your original payment method within 3-10 business days (depending on the payment provider).

Late or Missing Refunds

🔍 Check your bank statement — sometimes the refund may not appear as a new entry but as the disappearance of the pending charge. 📞 Contact your credit card or financing company — they may require additional time for processing.

If you’ve done all of the above and still haven’t received your refund, email us at sales@jdmuscleusa.com for assistance.

Sale Items

Only full-priced items are eligible for returns and refunds.

Exchanges

We replace items only if they are defective or damaged. To request an exchange for the same item, email us at sales@jdmuscleusa.com.

Gifts

🎁 If the item was marked as a gift when purchased and shipped directly to you, you will receive a gift credit for the return value.
📩 If the gift giver had the item shipped to themselves, we will refund the gift giver.

Return Shipping

📦 Customers are responsible for return shipping costs unless the item is damaged, defective, or incorrect (in which case we will cover shipping both ways).

Initial shipping costs are non-refundable.

Return shipping costs will be deducted from the refund amount.

For items over $75, consider using a trackable shipping service or purchasing shipping insurance. We are not responsible for lost or damaged items during return shipping.

Return Shipping Address: Please use the address provided in the RMA/return instructions, as it may differ from the initial shipping address.

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