Speedmaster®
Ford 4.6L EFI 1999-04 Mustang MidRise Intake Manifold Black
Product Information
Specs
| Brand: | Speedmaster |
| Part Number: | 1-148-020-03 |
| Part Type: | Intake Manifold, Fuel Injected |
| Product Line: | MidRise |
| Engine Block Style: | Stock/OEM standard deck |
| Injection Style: | Multi-port |
| Basic Operating RPM Range: | 1,500-6,500 |
| Intake Section Included: | Complete |
| EGR: | Yes |
| Injectors Included: | No |
| Fuel Rails Included: | No |
| Aftermarket Fuel Rail Required: | No |
| Throttle Body Included: | No |
| Supplemental Bosses Cast-In: | No |
| Supplemental Bosses Machined: | No |
| Runners Included: | Yes |
| Runners Removable: | Yes |
| Base Material: | Aluminum |
| Base Finish: | Black |
| Quantity: | Sold as a kit. |
| Notes: | For 2 V heads in Mustang applications only. Will require modification in other 4.6 applications. Stock cams only rev to 5,400 rpm. For maximum benefit, aftermarket cams are recommended. |
Description
The Speedmasterª MidRise manifolds, along with the similar MidRise Air, are the most powerful dual plane manifolds available. For non-pollution controlled street machines, these are among the very best manifolds you can use. They feature a square bore carburetor flange, nitrous bosses, four corner water ports, and dual distributor hold downs. These manifolds are approximately 5/8"“ taller than the LowRise series. On medium horsepower engines, dyno tests have shown that this manifold comes very close to producing similar power and torque numbers as our shootout racing intake manifold.
Warranty Information
Prop 65 Warning
Installation Guide
Our AI assistant generates a step-by-step guide for this product — covering installation, maintenance, and troubleshooting.
This AI-generated guide is for general reference only and does not constitute official Speedmaster product documentation. Always verify fitment, torque specifications, and safety requirements before installation.