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Power Strokes
6.7 Aftermarket
13-16 Spartan tuning
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[QUOTE="Ipkyss, post: 1316827, member: 1737"] I noticed power and shift is much better over 170 degrees. Granted I baby my truck till it's warm anyways. Swapped to the 550race tune. Without the enhanced shifting. I think it makes a better daily driving around town tune. At least around the city. With the current exhaust being fairly quiet. Normal around town driving you could almost forget the truck is tuned the shifting is so smooth. Then you get on the throttle and it's an instant reminder it got some good power. The 550 enhanced tune was surly quicker but the convertor locking in second would get annoying in stop and go traffic. Along with towing heavy around town. I feel like the 550 standard race tune is a set it and forget it tune for me, at least until I have to tow my big trailer here and there. [/QUOTE]
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