Compression Ignition Addict
Join Date: Oct 2011
Location: Chico, California
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tymar is essentially the same as a 6637 kit.
if you want a kit with a box and one that is smog legal the S&B kit with the dry filter is nice.
but i did the 6637 for my dad and it works just as good. just not as clean looking or smog legal here in commifornia
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99.5 f250 7.3 4x4 260k FF 160/30, PHP Hydra, S&B CAI, 4" Exhaust, RR Billet Wheel, Autometer Gauges, Transgo, Non-Ebpv Pedestal, High Flow Outlet, 08 Tow Mirrors.
Dad-2000 7.3 4x4 110k miles, Autometer Gauges, Superchips 1705, 6637, 4" Exhaust, BD Billet Wheel, TruCool Max