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Type: Posts; User: GA442

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  1. Replies
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    I'm sure a custom tune like Black Bear...

    I'm sure a custom tune like Black Bear Performance would be the best. I just installed a Diablosport predator that I purchased from www.diablosportpower.com for 264.95 with no sales tax and free UPS...
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    Jimbo, My 2003 Silverado 4.8 just...

    Jimbo,

    My 2003 Silverado 4.8 just started making the exact same sound as your video. Did you ever find the cause? I also have a slight whistling noise under moderate acceleration. ...
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