It does make me wonder why such a difference. Mine has shifted practically perfect from day one.
I've read of and heard it some new trucks having solenoid issues from the factory.
I hope our good reports on spart-on tuning have not steered you wrong. I'm certainly not a salesperson for them. Maybe see about a refund or sell it and try ppei?
I don't think he's that mad. They are far from bad tunes, they are great tunes IMO . I just give him a hard time...
Plus it's a bit sad the support isn't super good.
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