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  1. #1 Re: mileage drop 
    Solving problems BrandonHall10's Avatar
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    I still see a couple degrees with CAI and Speed Daddy's on 91 octane. Stock pulley. I'm about 99.9% sure it's legit knock.
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  2. #2 Re: mileage drop 
    GT Level Member yzboy85's Avatar
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    How many is a couple? I'm seeing like 3-4* at WOT which is what I was seeing with the exact same car on stock exhaust, I would think it would at least be less
    02 GTP Coupe - Jennifer
    SD headers, SLP Powerflo catback, 3.4, CAI, Shift Kit, GMPP Sway Bars, F-Body Brakes
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  3. #3 Re: mileage drop 
    Solving problems BrandonHall10's Avatar
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    Quote Originally Posted by yzboy85 View Post
    I'm seeing like 3-4* at WOT...
    Same here. Lower motor mount, torque thrust mount and dog bone bushings are all brand new.

    I think mine is due mostly to 2 thinks though...
    1.) Stock tune
    2.) 91 octane

    Sorry, didn't mean to hijack. Just wanted to throw my personal experience out there.
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