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Black Bear Tune is a most!
Granatelli MAF left in. Justin reset the thing so it now works properly. Not knowing about this performance stuff I rely on the sales people to be truthful. In regards to a MAF, Justin speaks to the technology about them and told me they pretty much never need to be changed out. Disregard the...- DavidBarlow
- Post #13
- Forum: Performance
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Black Bear Tune is a most!
The Gibson exhaust system has a soft rumble and now that it has the BB tune the sound has mellowed somewhat. Definitely a smoother, softer rumble. I thoroughly like it. This forum is awesome. I have been reading y'alls posts for several weeks now and have learned a bunch. After I bought the...- DavidBarlow
- Post #11
- Forum: Performance
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Black Bear Tune is a most!
Update to message added to vehicle description: Gibson Dual Sport Exhaust System Also, My Daughter and Grandchildren live new Atlanta. The mileage is inconsequential when visiting Grandchildren- DavidBarlow
- Post #5
- Forum: Performance
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Black Bear Tune is a most!
Just returned from Atlanta, GA after getting a BB tune-up from Justin. I got 18.75mpg from Jackson, MS to Atlanta. After tune-up, Atlanta to Jackson=21.25. Very impressive for a 2003 Tahoe 5.3L with Gibson Dual Sport Exhaust System, AEM CAI, Granatelli MPG wires, E3 plugs. Also, Michelin LTX...- DavidBarlow
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- Replies: 17
- Forum: Performance
