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Re: 1999 GMC Suburban K2500 DD
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Originally Posted by LT7A
Very clean truck and I like you updates you made. That rig should serve you well and in comfort too. I would also be curious about your highway mileage when you get the chance to calculate it. Thanks.
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Thanks!
Last tank back and forth to work was 11.2mpg. This is with the Blackbear tuned ECU. Definitely drives much better
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1999 GMC Suburban K2500 SLT, 454/4L80E
1991 Z/28, 6.0L/T56
1949 GMC 250, S10 Frame, 6.0L/4L80E
Instagram @aceshighspeedshop
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