I installed one last march I couldn't tell much if any improvement in performance. The biggest difference was the heater and less black smoke when I really layed in it. Although even with out a manuel gauge I think my old stat was opening to soon even for a 195. Reason being my heater wasn't the greatest and my oil temp would never get over 160 unless I was running 80+ down interstate for awhile and then might hit 165. I do think I gained a tenth or two in mileage but could have been a fluck.
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WHEN IN DOUBT FLOOR IT! 
IF IT'S TOO LOUD YOUR TOO OLD!
99.5' F-250 EXTCAB 4X4 6SPD 4" LIFT 35" TIRES 3.73 GEARS
K&N INTAKE, GTP38R W/TURBO MASTER WASTEGATE CONTROLLER,
203DEG THERMOSTAT, EVO II,AND MBRP COOL DUALS EXHAUST NO MUFFLER
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Fri, January 29th, 2010, 09:14 PM
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