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Intake manifold porting

This is a discussion on Intake manifold porting within the External Engine forums, part of the LSx Technical Help Section category; found a service at ( Ported LS2 Intake Manifold, Complete Street Performance ) that offers to port my preexisting intake ...

  1. #1
    Insurgent Hunter dethinboots's Avatar
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    Impulse Blue
    2005 a4 GTO

    Intake manifold porting

    found a service at (Ported LS2 Intake Manifold, Complete Street Performance) that offers to port my preexisting intake manifold. This seems like a great deal to me because they offer this for $175 as opposed to the astronomical cost of a new intake. They claim a 15rwhp gain. Just want to know if this service is worth it and the business is reputable.
    2005 Impulse Blue GTO
    Kooks Longtube Headers (off-road mids) , SLP Loudmouth II Catback, Vararam OTRCAI, MSD Spark Wires, 238/242 .595, Trickflow 225cc Heads, SLP 25% UD Pulley, Breather, Elite Engineering Catch Can, 3200 TC,Hayden Trans Cooler, P&P TB, Dyno tune by Sunshine Performance

  2. #2
    Moderator 98TransAmWs-6's Avatar
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    98 TA WS6/ 01 C5 Corvette

    IDK if I believe 15 on a ls2 intake.

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    1998 Trans Am WS6 - Phantom
    421 CI LQ9, Tick Performance Custom Cam, TFS 255cc LS3 heads, Kooks 2" LT headers, Kooks 3" True Duals w/ high flow cats, FTP 104 lid, Speed Density Tune, 4" silicon tube, LS6 VCT, FAST 102 Intake, NW 102 TB, Oil Catch Can, SLP Bilstein Shocks w/ Vogtland Springs, CTS-V 4-piston Calipers w/C6 Z06 rotors, Stainless Steel Brake Lines, R1 concepts premium rotors, Hawk HP+ brake pads, VFN WSQ Hood, C5-R timing chain, SLP oil pump, E85 tune, Walbro 450 fuel pump, Deatschwerkz 95# injectors, Breathless performance headlights, Frost Tune, !HVAC.
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  3. #3
    Senior Member Whamhammer's Avatar
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    Quote Originally Posted by 98TransAmWs-6 View Post
    IDK if I believe 15 on a ls2 intake.

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    Wasnt the biggest problem with the LS2 manifold is that they tended leak, from the factory?
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  4. #4
    Moderator 98TransAmWs-6's Avatar
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    98 TA WS6/ 01 C5 Corvette

    I'm not sure about that but it's been known even despite the bigger opening the ls6 flows better.

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