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Thread: m1 intake manifolds

  1. #1
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    Default m1 intake manifolds

    Can anyone explain the differences in the m1 manifolds as opposed to the MPI manifolds, I have a 5.9 in my jeep grand cherokee, and looking to upgrade. Mopar performance lists five different part numbers that fit the 5.2/5.9 magnum motors p5007381, p5007380, p5007398, p5349816, and p4876615, I think the one I want is the p5007398. Any help would be appreciated.
    98’ZJ

  2. #2
    SpeedFreaks ********* JerodR1's Avatar
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    The part # you want is P5007398. This is a direct replacement 2bbl Single Plane Manifold. You will get a noticable increase in midrange and high end power without the loss of your low end torque. The other part numbers are for the trucks and passenger cars, and then you have your 2bbl and 4bbl. You don't even want to use the 4bbl. You will loose all of your low end torque. This will not really work very well unless your Jeep is extremely modified, and I do mean extreme.
    1998 5.9 Jeep Grand Cherokee Limited w/almost every bolt on aside from a blower...Solid high 13 sec Jeep. NOW SOLD.

    Just Sold..- 2004 E-Blue SRT4
    14.2 @ 101mph first run, best of 13.8 @ 103 stock
    Stage 2, Exhaust, and handling mods= 13.2 @ 107mph

    New Car- 2011 Subaru Legacy 3.6R Limited
    Shopping For- Next Gen SRT-8.

  3. #3
    Registered cherokeekid's Avatar
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    I pulled this off www.buymopar.com under the heading magnum engines

    P5007398AB intake with EGR
    $361.25
    P5007852 intake with/out EGR
    $324.99 (coming soon)
    P5007638 install kit $61.25
    P4876049 gasket $25.25

    so would the P5007852 be the better choice? (is this the new M1?)

  4. #4

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    P5007852 is the one that you want to get. Since ours (98) don't have an EGR, you dont need P5007398. You also need to get P5007638 install kit and P4876049 gasket set.
    '98 ZJ 5.9 Limited Bright Platinum
    APS 52mm TB, K&N Gen II FIPK, Mopar Performance ECU, 2bbl MPI, FMS 24lb. Injectors, Carsound Cat, Leach Headers w/ 3" Catback Exhaust, Accel/ Taylor Vertex Ignition Upgrade, Mopar Tow Hooks, Skid Plates, Powerslot rotors, Addco Front & Rear Anti-Sway Bars W/ Energy Greaseable Bushings, JKS Quicker Discos, 4.10 gears, 2" Budget Boost, E-code lights, 245/75/16 BFG AT KO's

    '01.5 Audi S4 Pearl White
    2.7L Twin Turbo Stage 3+

  5. #5
    Registered cherokeekid's Avatar
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    Thanks!

    Curiosity,...what is in the "install kit"?

  6. #6

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    The install kit includes bolts, spacers and wires to extend the IAT.
    '98 ZJ 5.9 Limited Bright Platinum
    APS 52mm TB, K&N Gen II FIPK, Mopar Performance ECU, 2bbl MPI, FMS 24lb. Injectors, Carsound Cat, Leach Headers w/ 3" Catback Exhaust, Accel/ Taylor Vertex Ignition Upgrade, Mopar Tow Hooks, Skid Plates, Powerslot rotors, Addco Front & Rear Anti-Sway Bars W/ Energy Greaseable Bushings, JKS Quicker Discos, 4.10 gears, 2" Budget Boost, E-code lights, 245/75/16 BFG AT KO's

    '01.5 Audi S4 Pearl White
    2.7L Twin Turbo Stage 3+

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