Recent content by jbru167
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J
Suburban Catalytic converter question/ Gibson exhaust
I just got my Gibson Cat back exhaust has bolt on flange for Cat my Sub has slip on connection. Check other exhaust seems to be bolt on? Sub is 2014 with 20k why would it not be bolt on? Can't find slip on exhaust system.- jbru167
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- Forum: Performance
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J
2011 yukon xl 20" 305's and 2" levle kit gas mileage droped huge?
BB on its way hope to get it dialed in soon. ZED71 do you have full magnaflow system or just muffler? -
J
2011 yukon xl 20" 305's and 2" levle kit gas mileage droped huge?
Just intalled Airaid and ordered BB AUto Cal tuner. HOpe to make up some of the loss. On the fence about the exhasut making any MPG gains. Lenaing towards muffler and maybe tips any suggestions? -
J
2011 yukon xl 20" 305's and 2" levle kit gas mileage droped huge?
I love the way my truck looks with the 305's just can't beleive that I would loose 3-4 MPG's with this set up... -
J
2011 yukon xl 20" 305's and 2" levle kit gas mileage droped huge?
i installed a 2"leveing kit and 305 Terra grapplers with 20' wheels and my mileage dropped from 18-19 Hwy to 14-16. My speedo shows 3mph off compared to GPS. How could it drop that much? Will recalibrating my speedo help at all or am i stuck with chip and intake to help?
