Holley 300-915 Ford Coyote Hi-Ram EFI Intake Manifold, 93 mm Throttle Body Flange, Multi Port, Aluminum, Natural, Kit

Another new Ford Coyote Hi-Ram version is ready for release. 300-915, natural finish, and 300-915BK, black finish, are top-feed plenum Coyote Hi-Ram intake manifold kits with a new plenum top that provides mounting for round throttle bodies. Standard mounting patterns on the throttle body flange with a 93mm flange opening include GT350, GT500, and LS 4-bolt throttle bodies. 2011-2013 GT throttle bodies may be used with the optional 717-18 adaptor.

The 300-915/BK simplifies the fabrication of inlet piping which is more simply mated to a round throttle body. In combination with the Hi-Ram top-feed plenum flange which accepts plenum mounted intercoolers, 300-915/BK may become the favored Coyote Hi-Ram for forced induction engine builds.

Like the other Coyote Hi-Ram manifold kits, included are fuel rails for use with OEM type fuel injectors and clips, mounting hardware, and O-ring gaskets. Offered in black and natural as-cast finish, both manifolds have a 9.20-inch runner length, ample plenum volume, and are designed to improve the mid to high RPM powerband.

Features:

• As-cast aluminum construction: more durable for boosted applications, can be welded for modifications
• Modular design: accessible runner entries for porting, allows accessories like intercoolers and nitrous plates
• 300-911 and 300-912 Ultra Lo-Ram will fit under stock hood with stock engine mounts in 2015-23 Mustang
• Refined port design with streamlined injector boss for reduced turbulence without loss of flow area
• Allows a variety of throttle valves including large monoblade, 2015-20 GT350, 2007-14 GT500, 2019-23 GT500, GM LS 4 bolt, 2011-23 Ford Mustang GT (with optional adapter 717-18)
• Fuel rails with -8AN ports and dual 1/8 NPT accessory ports for gauges or Gen 3 direct injection fuel line hookup
• 300-911 and 300-912 front inlets can be interchanged between round and oval with service parts
• Plenum Volumes: 300-910 & 300-915 9.8-liters, 300-911 8.4-liters, 300-912 8.2-liters
• Two 1/8 NPT ports on all manifolds. Two 3/8 NPT ports on all manifolds, except 300-911 has one

Notes: Top Feed Silver

Instructions

Instructions - 199R12270_rev26NOV2025.pdf

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Products sold on this website may not be legal for use on public roads or highways due to Environmental Protection Agency (EPA) restrictions or California Air Resources Board (CARB) emissions regulations. Federal and State regulations may restrict Product installation to pre-emissions regulation (Model Year 1974 or earlier) or to competition/racing vehicles used exclusively in
1) events organized by recognized bodies, authorizing permits for participating drivers.
2) racing event qualification, and3) practice associated with events.
Installation of such products, including driving racing vehicles to and from the track, may be considered illegal “tampering ” or as “defeat device”, and may result in federal and state penalties. It is the purchaser’s responsibility to ensure compliance with all applicable emissions laws, including California’s stricter standards.

Proposition 65 Warning:
This product may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.