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The AMS Performance 2021+ Ford F-150 and Raptor 3.5L EcoBoost Turbo Inlet Tubes are engineered to unlock airflow your truck has been leaving on the table by eliminating the restrictive factory inlet bottleneck between the intake system and the turbochargers. With up to 158 percent larger cross sectional area than the OEM tubes and organically shaped flow paths that maintain smooth airflow through direction changes, these inlet tubes dramatically reduce pressure drop at the compressor covers and deliver up to 2.6 PSI less inlet restriction at equivalent power levels. The improved airflow allows the turbochargers to operate more efficiently with lower shaft speeds, reduced charge air and exhaust gas temperatures, and less overall turbo stress, while also creating additional headroom for higher power levels once tuned. Designed to integrate seamlessly with the factory intake system and most aftermarket intakes, the AMS Turbo Inlet Tubes retain all OEM fittings and connections while maintaining an OEM look and feel, delivering a clean installation and a measurable performance upgrade for any 3.5L EcoBoost F-150 or Raptor.
- Up to 2.6 PSI Less Turbo Inlet Restriction at Equivalent Power Levels
- Massive Airflow Improvement Over the Competition During Testing
- Up to 158 Percent Larger Cross Section vs OEM, Dramatically Reducing Turbo Inlet Restriction
- Organically Shaped to Provide Smooth Flow During Direction Changes
- Wire Reinforced Couplers with Notch Alignment for a Perfect Install
- Compatible with OEM and Most Aftermarket Intakes and Retains All OEM Fittings and Connections
- Increased Turbocharger Headroom for Higher Power Levels Once Tuned
- 42.4% Less Pressure Drop at Turbo Compressor Covers vs Stock
- Reduces Workload and Stress on Turbochargers, Extending Lifespan
- Lower Charge Air and Exhaust Gas Temperatures by Reducing Turbocharger Shaft Speeds
- OEM Look and Feel with High Quality Materials
Engineered to Win
When evaluating the factory turbo inlet tubes on the 2021+ Ford F-150 and Raptor 3.5L EcoBoost platform, our SnailWorks® Engineering Team identified a significant airflow bottleneck ahead of the turbocharger compressor inlets. The OEM tubes prioritize packaging and manufacturing considerations, limiting the cross sectional area feeding the turbochargers. This restriction increases pressure drop before the compressor covers and forces the turbos to work harder to achieve the same boost levels.
To address this limitation, our engineers redesigned the inlet geometry with significantly larger internal diameters and optimized transitions that maintain smooth airflow through directional changes. The factory bottleneck diameter of roughly 40 mm has been increased to over 65 mm, resulting in up to a 158% increase in cross sectional area over the OEM inlet tubes and dramatically improving airflow capacity to the turbochargers.
Extensive CAD development and real-world testing were used to refine the design and minimize pressure drop throughout the inlet path. The tubes maintain a large diameter as far down to the turbo inlet as possible before smoothly guiding airflow into the compressor cover, promoting even airflow distribution into the turbocharger.
Compatibility and ease of installation were also key priorities. The AMS Turbo Inlet Tubes retain all OEM fittings and connections while integrating with the factory intake system and most aftermarket intake options. Our engineers also developed notched silicone couplers that align with the inlet tubes, allowing the components to be perfectly oriented correctly during installation and making clocking the tubes in the tight engine bay significantly easier. The end result is a high performance inlet system that improves airflow while maintaining OEM-level fit, function, and appearance in the engine bay.
Data Driven Design
At AMS, product development is driven by real-world data. Our development vehicles are equipped with a MoTeC dash data logger and a 19-sensor array that monitors critical engine and turbocharger parameters in real time. This instrumentation allows our engineers to capture detailed data during dyno testing and on-road validation, ensuring every design decision is based on measurable performance improvements.
During development of the AMS Turbo Inlet Tubes, our team monitored key system parameters including compressor outlet temperature, charge air temperature, turbine inlet pressure, drive pressure ratio, and exhaust gas temperature across both turbocharger banks to understand how inlet restriction affects the entire turbo system.
Testing on a 2022 Ford F-150 Raptor 3.5L EcoBoost equipped with an AMS Intake, AMS Intercooler, and 93 octane calibration showed clear improvements across these channels when the AMS inlet tubes were installed. With reduced restriction ahead of the compressor, the turbochargers operated at lower pressure ratios and reduced shaft speeds while producing the same manifold pressure, resulting in lower compressor outlet temperatures and reduced thermal load on the intercooler system.
Lower compressor workload also reduced turbine demand, producing lower turbine inlet pressure and a more favorable drive pressure ratio. This allows exhaust gases to exit the cylinders more efficiently and helps reduce exhaust gas temperatures during equivalent power runs.
One of the most important indicators of intake system restriction is pressure drop ahead of the turbocharger compressor. Ideally, pressure at the compressor inlet should remain as close to atmospheric as possible. At approximately 470 wheel horsepower, the AMS Turbo Inlet Tubes reduced turbo inlet pressure drop by up to 2.6 PSI compared to the OEM inlet tubes, with no calibration changes between runs. The AMS F150 Turbo Inlet Tubes also delivered nearly identical airflow results across both banks, demonstrating how well-matched the system is as a paired set. Balanced airflow between turbochargers promotes more consistent engine performance and more predictable ECU calibration.
Reducing restriction at the compressor inlet lowers the pressure ratio required to produce the same boost level. This allows the turbochargers to operate in a more efficient region of the compressor map, which reduces shaft speed and compressor outlet temperature. Lower turbo workload also reduces turbine inlet pressure and exhaust backpressure, helping improve engine efficiency and durability while increasing available airflow headroom for higher power levels.
Test Bench Results That Speak For Themselves
To quantify airflow gains with absolute precision, our AMS SnailWorks® Engineering Team ran the OEM intake tubes, a leading competitor’s offering, and the AMS F150 Turbo Inlet Tubes through our state-of-the-art MAF-based flowbench. Using MoTeC instrumentation to capture real-time pressure and airflow data, each inlet tube was tested under identical, repeatable conditions simulating the airflow demands of a ~500 WHP 3.5L EcoBoost engine.
The results were unmistakable. The factory intake tubes struggled, showing –2.05 psi of depression on the right intake tract, a clear sign of significant restriction. The competitor system performed marginally better but still exhibited notable pressure drop. In contrast, the AMS Turbo Inlet Tubes demonstrated a dramatic improvement with only –1.18 psi of depression at the same airflow level, representing up to a 42.4% reduction in restriction versus OEM. At any given pressure drop, the AMS system consistently flowed more air than both stock and competitor offerings, making it the least restrictive inlet tube solution in the test group.
The data speaks for itself: if you’re seeking maximum airflow and horsepower potential, the AMS Performance 2021+ Ford Raptor and F-150 3.5L EcoBoost Turbo Inlet Tubes stand alone at the top.
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The goal of AMS is to provide the highest quality, best performing products available. By utilizing research and development and rigorous testing programs, AMS will never compromise the quality or performance of our products. In addition, AMS will only provide the finest customer service offering only advice and parts that are in the best interest of the customer.
At AMS Performance, we specialize in automotive performance for turbocharged vehicles. In addition to being a leader in the automotive performance parts manufacturing industry, we offer in-house engine computer calibration, parts and package installations, as well as engine and transmission building services.
First and foremost, AMS is an engineering company. Unlike other shops, our parts are engineered to be the best performing components you can buy. Most manufacturers in the industry have a basic understanding of engine performance but at AMS we take it far past that using computer-aided designs and mechanical engineers with years of motorsports experience.
AMS Performance has been at the top of the game since opening our doors 20 years ago. From turn-key packages to individual components, we can meet and exceed all kinds of performance goals. From drag racing to road racing, and everything in between, let AMS enhance your driving experience!
AMS PRODUCT AND INSTALLATION LABOR
AMS Performance offers a limited warranty against defects in workmanship for all AMS Performance manufactured components as well as technician labor for installation or repair conducted at the AMS Performance facility in West Chicago, IL. AMS’s obligation under this warranty extends solely to the craftsmanship of labor or components manufactured by AMS for a period of twelve months or 12,000 miles for the original purchaser.
Due to the variety of modifications and changes made to cars and/or engines that may affect the performance or durability of related components, AMS’s obligation under this warranty extends solely to the repair or replacement of parts manufactured by AMS.
AMS’s obligation under this limited labor warranty extends solely to the labor required for the repair of components or systems deemed by AMS Performance to have been damaged as a result of an AMS employee’s negligence during installation of those components, systems, or existing components and systems.
AMS COMPLETE VEHICLE PACKAGES
AMS Performance offers a limited warranty against defects in workmanship for all AMS manufactured components within AMS Performance Packages, for the original purchaser. This warranty applies to AMS Performance Packages such as “Alpha”, “Ronin”, and “Omega” branded complete vehicle packages, and begins on the invoice date of part purchase and ends twelve months or 12,000 miles from that date, whichever occurs first. Due to the variety of modifications and changes made to cars and/or engines that may affect the performance or durability of related components, AMS’s obligation under this warranty extends solely to the repair or replacement of a package or packages manufactured, installed and/or sold by AMS.
OEM or other aftermarket parts utilized within the AMS package may or may not be covered by the original manufacturer’s individual component warranty. AMS Performance offers no warranty expressed or implied for other manufacturer’s components within the AMS package.
AMS GEARWORKS® TRANSMISSION ASSEMBLIES
AMS Performance offers a limited warranty against defects in workmanship and craftsmanship for all AMS Gearworks® transmission assemblies. AMS’s obligation under this warranty extends solely to the craftsmanship of assembly labor and workmanship of components manufactured by AMS for a period of twelve months or 12,000 miles for the original purchaser.
OEM or other aftermarket parts utilized within the AMS Gearworks® Transmission may or may not be covered by the original manufacturer’s individual component warranty. AMS Performance offers no warranty expressed or implied for other manufacturer’s components within the AMS Gearworks® Transmission.
YOUR EXISTING OEM VEHICLE WARRANTY, INSURANCE, AND EMISSIONS OBLIGATIONS
A vehicle modified by the use of performance parts and tuning may not meet the legal requirements for use on public roads. AMS Performance makes no claims of compliance unless otherwise stated on a per-product basis. Use or installation of performance parts and tuning may adversely affect the drivability and reliability of your vehicle, and may also affect or eliminate your insurance coverage, factory warranty and new OEM part warranty. There is no stated or implied guarantee from AMS of continued OEM vehicle warranty, insurance coverage, or emissions compliance, due to the stress placed on your vehicle by performance parts and our inability to monitor its use, tuning or modification.
At JM Auto Racing we make returns and other client services as easy as possible. Our mission is to provide you with the best products and the best service in the automotive industry. We understand that sometimes, clients change their minds about products that they order or simply do not need them anymore. We also know that clients are cautious about terms and conditions since they are often tricky and misleading. Our goal is to make the return or exchange process trustworthy and as simple as 1-2-3.
Returns & Exchanges
If you are not satisfied with your purchase for any reason, we will be happy to accept a return for a refund or exchange on products in new/unused condition within 30 days of delivery.
- All returns and exchanges must be made via our return system.
- Returns will have a flat 15% restocking fee.
- Product(s) must be in new condition and in the original packaging (please do not assemble, install, or modify the product in any way). In the event of fitment, flaw or defect pictures may be necessary to complete your request.
- Any product that was used or fully/partially installed is non-returnable.
- In some cases, return of the physical product may not be required. For these products, instructions will be provided on how to process a field destroy or dispose of the original item.
- The few exceptions for items that cannot be returned include:
- Items classified as “special order” or “made to order”
- Custom Wheels & Tires Packages
- Electronics
- Any non-EPA compliant product including but not limited to ""off-road"" test pipes, downpipes, headers and high flow cats. We will try to make as many accommodations as possible however a 25% restocking fee will apply. Please contact us to learn more.
- To start your return please click HERE
Cancellations
We all know that things happen a people change their mind as soon as the purchase things. We take pride in how quickly we get things out the door and with 4 warehouses to ship from plus stock owned at our manufacturers, that speed is always increasing. This is why we only except full cancellations within 30 minutes of placing an in stock order. This helps us ensure your package gets out on the truck immediately or can be flagged before it goes through the packaging process. For orders that are not in stock or special order, we allow 24 hours. Cancellations can be done online by following the instructions found HERE or by emailing support@jmautoracing.com ,
Your request will be processed as quickly as possible, but please note that sometimes products ship quicker than expected. After 24 hours, or after an out of stock item has been confirmed, fees will apply to all cancellations with the exception of Special Order items, made to order items or custom built items; which can not be cancelled after the 24 hour period. Items confirmed on reserve or pre-ordered are subject to a 10% cancellation fee.
Cancellations are subject to a 10% cancellation fee. This fee is not to rip you off in any way. When you place an order, we lose 3% due to credit card processing, and also another 3% to credit your account. The other 4% is much less then what is needed to cover all other costs and expenses lost by cancelling an order, that was already processed. This fee is will only be imposed on orders that have not shipped. If a special order has been placed, such as pistons, turbo's, etc., and the items are built and ready to ship out, and a cancellation is requested, a 25% cancellation fee will be imposed IF possible to be cancelled.
- To start your cancel please click HERE
What are my shipping fees?
For orders delivered within the continental US where reason for return isn't a result of a JM Auto Racing error, the cost of the initial shipping charge and a return fee will be deducted from your refund. A prepaid shipping label(s) will be provided.
Freight, international & non-continental US returns are accepted, however coordination of return shipping is the responsibility of the client. In the event an error is made by JM Auto Racing, a return shipping label will be provided.
РЎore deposits
Some products sold on JM Auto Racing include a core deposit. These parts have a deposit that is charged upon purchase and fully refunded upon the return of the core. Cores must be in rebuildable condition and matching vehicle application to the product sold. Once the product is received and inspected, the deposit will be refunded to your original form of payment. Note: Product cores returned that are not fully assembled or are not the unit that was removed from the vehicle, will not be refunded and the core will be discarded. Detailed instructions on Core Deposit Returns can be found here.
Defective, damaged, or incorrect products
We all know that accidents happen sometimes. If your product(s) arrive defective, damaged, or simply incorrect, please contact our customer service department as soon as possible. Please do not attempt to use, install, modify, or repair the part! We will send you a replacement part and provide you with a prepaid return label to return the defective part. In some instances, return of the product may not be required. Products must be returned to us within 30 days. If the damage was caused by a shipping courier, we will schedule a damage pick up by the courier. Photos of the damage, defect, or fitment issue may be requested in order to correctly process your request. For items mispackaged or missing, returns and replacements will be handeled as warranty requests, subject to manufacturer involvement and normally handled within 24-48 hours. Please note that products must be in the original packaging and there are additional requirements for products that ship freight.
LTL and Freight Shipments will cover the delivery of most oversized items, including but not limited to, body kits, hoods, trunks, spoilers, doors, roll cages. Items should be thoroughly inspected at time of delivery. Any damage NEEDS to be notated on the Bill of Lading prior to the driver leaving for an insurance to be valid. If damage, is not noted, the insurance is voided out and will need to be dealt with between you and the shipping carrier.
Billing, refunds & credits
Payment for orders placed using PayPal of Affirm will be captured as soon as the order has been successfully placed. Payments for orders placed using a debit or credit card will be authorized only and captured upon shipping. What does this mean? If your order is in stock, it will be charged normally. For out-of-stock items arriving within 30 days, you may see the authorization temporarily fall off. The funds will be placed back into your account and you won't see the pending charge from us. Once the item ships, you will see the funds deducted and the charge posted to your account. For out-of-stock items after 30 days, the above will take place, however we will have to recharge your card once the item is ready to ship.
Refunds for returned products are issued with 3-5 business days once they are received by our warehouse and inspected. Refunds will be issued via the same payment method originally used to place the order (Credit Card, PayPal, Google, Affirm, Check). All returns, where JM Auto Racing is not at fault, will have 15% restocking fee less than cost of freight. Free shipping items will have the initial freight fees deducted from the final refund. Shipping is only free if you keep the item you purchased. Some items will have a higher restocking fee. This information will be revealed to you up front upon requesting a return. Once the refund has been issued a confirmation email will be sent. Please allow an additional 5-7 days for the credit to appear on your account.
Shipping & delivery
To ensure a fast and safe delivery we use FedEx, DHL, Ontrac, USPS, & UPS Ground/Air shipping services. Available shipping methods may vary for different type of products and shipping destinations. Most products in stock ship same day, or within 1 business day after which its delivery can be tracked via tracking number sent to your email. For custom or made to order items shipping time varies as they may have to be manufactured, painted, embroidered, or assembled.
Please keep the following in mind:
- Products that are oversized must ship truck freight / LTL which differs from ground shipments. NOTE: These oversized items require inspection and a signature upon delivery. For more information on freight shipping click here.
- Shipments to Canada are treated as all other international shipments. It is the recipient's responsibility to pay all applicable duties, taxes, & brokerage fees. Detailed Info can be found here here.
- Shipments to HI, AK, PR, Guam, Virgin Islands, APOs, & Canada might require extra shipping charges. International shipping quotes will be e-mailed to the customer before the credit card is charged.
- Oversized items such as hoods, body kits, bumpers, tonneau covers, roofs, trunks and spoilers may require additional postage that is not displayed on the website. You will be contacted prior to the item shipping to confirm.
To request an international shipping quote before placing an orderIf you would like special shipping arrangements, please contact us via live chat, email or call us at 1.855.998.8726
Disclaimer
In effort to provide our valued clients with the most up to date and accurate information, JM Auto Racing is continuously implementing real-time updates to our online superstore. Due to the immediate nature of these updates the correction of any errors and/or omissions can happen at any time without prior notice. This information may include but is not limited to pricing, availability, suggested use, fitment, compatibility, and warranties.
JM Auto Racing is not responsible for any additional charges, labor, loss, or damage incurred as a result of information, correct or incorrect, referenced or products purchased from JM Auto Racing. While we work to avoid any errors or omissions that may appear on the JM Auto Racing website, we do reserve the right to cancel any undelivered orders based on inaccurate information. more details