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2015 Suburban LTZ - BB tune-worthy?
Would my 2015 Suburban 5.3 benefit from a tune? It is an LTZ with the Max Trailering Package 3.42 gears. Currently have ~35,000 miles. My only "performance" goodies are a Range AFM disabler and an almost exclusive use of premium fuel. Normally, I'd be suspicious of the benefit of running...- formula271
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- Replies: 10
- Forum: Black Bear Performance
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MRC updates / throttle response updates available for 2015 LTZ?
I had read "MRC" tuning updates may be implemented for 2018 MY. I posted my situation / question below in another thread, but thought it might be more appropriate here. I have a '15 Suburban LTZ with the MRC and have always thought the ride was terrible. It's harsh and floaty at the same...- formula271
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- Replies: 0
- Forum: Street Suspension
