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  1. 06-07-2009, 05:07 AM #1
    kappasig53
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    pewter
    1999 trans am

    under drive pulley

    Is it worth the money to get the slp underdrive pulley?. and is it noticeable
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  2. 06-07-2009, 05:24 AM #2
    ls1camino
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    2000 Grand Prix GTP
    2000 Trans Am WS6 M6

    I have one, but haven't gotten a chance to "field test" it yet.
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  3. 06-07-2009, 06:11 AM #3
    anniversary30
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    White/Blue
    99 Trans Am

    I have a underdrive on mine, not sure whos my shop put it on. From what I got out of it you would be wasting you money unless you started to do some bigger mods. I had headers , y and borla with a tune and was told it would be a waste. They didn't bother untill I did my HCI .
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  4. 06-09-2009, 01:55 PM #4
    kappasig53
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    pewter
    1999 trans am

    i have long tubes off road y , slp loudmouth no cats. computer tune, 3.73gears, intake bellow , slp airlid and some pother little things
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  5. 06-09-2009, 02:02 PM #5
    Sayed_000
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    Pewter
    Camaro 2000 SS M6

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    well .. i'm planning to get one before the tune ...
    Paceseter LT's | QTP 3" e-cutout | custom 3" ORY pipe | Magnaflow 3" cat-back |Thunder Racing 230/236 112+2LSA custom Cam | MTI carbon fiber lid | K&N Fillter | LS6 intake | ls2 ported oil pump |Slp short shifter | m6 w/4.10s ratio | monster stage4 clutch | Hurst shifter | Dyno Tuned !
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  6. 06-09-2009, 07:07 PM #6
    666ws6
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    NBM
    2000 Trans Am Ws6 #2946

    By shear physics, it should help, even if minimally. I have one, and had a few belts fly off at high RPMs on the track. I got a new KaTech tensioner and it's been ok since, but my sneaking suspiscion is it's my ASP pulley. Different belts too, so if you loose one, it's not a simple as hitting the autoparts store. I keep an extra on hand now to be safe.
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