I have used Ultimate Z in Streamwood for my HFC and CBE install. The place looks a bit run down but their mechanic KT knows what he is doing. Routine service I do myself so can't help with dealer advise there.
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Black Fangs // Black rear Valance // Berk CBE // COBB post MAF tubes // K&N drop in filters // Setrab Oil Cooler // Stillen Sway bars // Z1 SS brake lines // Stillen brake cooling kit // Harness bar //
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