You don't have to have the parking brake set for the high idle tune on the chip to work. Its a good ideal to have the parking brake set but you don't have to. I don't mind the 80DD tune now. I use to not like it b/c it felt a little bit dead when you took off. The 100 performance is a good daily driver tune. It gets good mileage and has a good pedal feel.
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2000 Ford F-250 ext. cab 4x4 6 spd. Glowshift gauges, egt, boost, and fuel pressure. FU package from PHP, 5 inch straight mbrp exhaust.
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