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JM Fabrications 1G Mitsubishi DSM Street Version billet Intake Manifold BBK 75mm TB flange

$670.98 Sale:$570.33

JM Fabrications

Model #1G-INTA-00-BBK

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The JMF "STREET" version intake manifold is for those looking to add more power to your daily driver while keeping spool loss to a minimum. A favorite for the Auto X crowd, the "STREET" version caters to smaller turbos and those who want an every day reliable setup. With over 10 years of proven results, our budget friendly "STREET" version intake manifold is the best bang for you buck. Our latest revision introduces a CNC machined billet runner section that bolts to the plenum for modular functionality. Expected gains can be anywhere from 10-30 HP based on your setup and tuning.

Our manifolds are designed for DSM's with eliminated EGR. Some modifications to your coil pack mounts and upper intercooler pipes may be needed as this manifold sits down a lot lower than stock. If using the Accufab and other aftermarket throttle bodies please note that the throttle cable and TPS sensors may need modifying. If you need additional vacuum ports our Vacuum Distribution Block is a great option for up to 6 more ports. Also available is a RWD version of this manifold for no extra cost, perfect for the custom 4G63 swap into a rear wheel drive vehicle.


  • Made form 6061-T6 aircraft quality aluminum
  • CAD designed
  • CNC machined billet runner section
  • Modular design for cost effective upgrades
  • CNC machined velocity stacks
  • Tapered runners
  • Inset plenum to virtually eliminate any chance of plenum failure from high boost/NOS
  • O-ring'd head flange eliminates the need for a gasket
  • 5 port vacuum plate with 1/4" NPT threads
  • NOS provisions standard
  • Several different finishes and throttle body flange options available

What's Included:
  • STREET version intake manifold
  • (2) 3/8" brass hose barb
  • (1) 1/4" brass hose barb
  • (1) 1/8" brass hose barb
  • (1) 1/4" NPT brass plug

  • '90-'94 4G63 DSM
  • Galant VR4
  • '95-'99 4G63 DSM w/ 1G head swap

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Vehicle Engine Notes
Mitsubishi Eclipse

Our Company's products are guaranteed to be free from defects in material and/or workmanship and to perform as advertised when properly installed, used, and maintained in accordance with written/website instructions. Failure to adhere to and/or comply with operation manual/website instructions will void all associated warranty obligations. Should any part(s) prove defective within the specified warranty period, it(they) will be repaired/replaced F.O.B. our factory, or branch, without charge provided the defective part(s) is returned to our factory or branch transportation charges prepaid. All shipping charges are to be the resonsibility of the customer.

JM Fabrications LLC will not be responsible for labor charges, loss, or consequential damage of any kind or character caused by defective parts or for charges incurred in the replacement or repair of defective parts by Purchaser. This warranty does not apply when damage is caused by surface coatings, heat wraps, abrasive materials, chemical deposits, or corrosion, unless so specified on a quotation from JM Fabrications LLC. Careless handling, including that by freight companies, and improper installation or use may void all warranties.

Any product covered by warranty that has failed will be repaired first. If a repair is not successful or feasible the product will be replaced with a new or similar condition item.

JM Fabrications LLC. must be notified of a failure within the warranty period and will then supply instructions to Customer or Dealer.

The forgoing states the Company's entire liability for any claim to damages whatever, and is made by Company and accepted by Purchaser in lieu of all other warranties, obligations, or liabilities expressed or implied.