Air and Fuel› Intake Manifolds and Components

MMX

SRV Controller for 6.4L HEMI Intake Manifolds

$249.95

SKU: MMX-SRV-CONTROLLER

Special Order
Special Order
Ships in 4–6 weeks
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The MMX SRV Controller is a new product designed for 6.4L HEMI car and truck intake manifolds. This controller simplifies the installation of a 6.4L intake manifold into a 5.7L powered vehicle. It features a plug-and-play installation with four pre-terminated connections. The controller powers from the vehicle's under-hood fuse box, grounds to the chassis, and receives its RPM signal from a coil pack.
Show original supplier description
The MMX SRV Controller is a specialized electronic module designed to manage the short runner valve (SRV) in 6.4L HEMI intake manifolds. This controller provides a simplified solution for enthusiasts performing an intake manifold swap, allowing the 6.4L unit to be installed and operated on a 5.7L HEMI-powered vehicle. The module is designed, programmed, and assembled in-house and features a plug-and-play architecture for straightforward installation. The included wiring harness uses four pre-terminated connections: power from the under-hood fuse box, a chassis ground, and an RPM signal input from a coil pack. It is fully compatible with aftermarket ECU solutions for custom performance builds. Operation is user-adjustable via an integrated dial, which allows for precise selection of the SRV opening RPM. The manufacturer recommends an engagement point of 4550 RPM for stock camshaft applications and 5150 RPM for aftermarket camshafts. For optimal security and performance, it is strongly recommended to mount the module inside the vehicle cabin. An integrated LED on the connector harness provides real-time status: green indicates the engine is running, a flashing green and red signal indicates an RPM error or that the engine is off, and a solid blue light confirms SRV actuation. Please check local and state laws regarding emissions compliance before installing this product.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandMMX
Part NumberMMX-SRV-CONTROLLER
CategoryAir and Fuel
5,000+ Trusted brands
1M+ Enthusiasts
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(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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