The aggressively designed Hi-Ram is constructed in a two-piece design to accommodate for air to water intercoolers and feature up to 20% more plenum volume versus Ultra Lo Rams. This manifold design is only offered in an oval throttle body configuration.

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 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