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Air and Fuel› Intake Manifolds and Components

JM Fabrications

Billet Aluminum Intake Manifold

$900.33 $691.67 Save $208.66

SKU: 1G-INTA-01

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Special Order
Ships in 4–6 weeks
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$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The JM Fabrications 1G DSM Race Version Intake Manifold is designed for performance enthusiasts seeking increased horsepower without significantly impacting turbo spool or streetability. This manifold features a CNC machined billet runner section bolted to the plenum for modularity. It is constructed from 6061-T6 aircraft quality aluminum and includes a 5-port vacuum plate with 1/4" NPT threads.
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Leveraging over a decade of performance-driven results, this "budget-friendly" manifold offers a significant performance upgrade. Its latest iteration features a CNC-machined billet runner section that bolts directly to the plenum, enabling modular functionality for future upgrades. Constructed from 6061-T6 aircraft-grade aluminum, this manifold is CAD-designed and CNC-machined for precision. The O-ringed head flange removes the need for a traditional gasket, and a 5-port vacuum plate with 1/4" NPT threads is included. NOS provisions are standard, featuring a machined area on the runner section with a dimple to mark the center for users who wish to drill and tap for NOS nozzles. Installation may require modifications to coil pack mounts and upper intercooler pipes due to the manifold sitting lower than the stock unit. If utilizing aftermarket throttle bodies such as Accufab or BBK, adjustments to the throttle cable and TPS sensors might be necessary. Several finishes and throttle body flange options are available. Applications include the 1989-1994 DSM, 1992-1995 Galant VR4, and 1995-1999 DSM with a 1G head swap. The "Race Version" intake manifold comes with various brass hose barbs and a 1/4" NPT brass plug. It is backed by a 3-year limited warranty to the original owner, though any incident involving nitrous or other alternative fuels will void the warranty.

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

BrandJM Fabrications
Part Number1G-INTA-01
CategoryAir and Fuel
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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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