Compression Ignition Addict
Join Date: Oct 2011
Location: Chico, California
Thanked 254 Times in 245 Posts
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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 265k Full Force 160/30, PHP Hydra, S&B CAI, 4" Exhaust, Van Turbo, RR 6/6 Billet Wheel, Autometer Gauges, Transgo Tugger, Non-Ebpv Pedestal, 08 Tow Mirrors, Trucool Max.
Dad-2000 F250 7.3 4x4 114k Autometer Gauges, Superchips 1705 (Tow Safe), Blue 6637, 4" Exhaust, BD Billet Wheel, Trucool Max.