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This could be a dumb question but have to ask it. Got a buddy with a 2019 TH who is a bit more ambitious than me with a 2018 TH. Here is the question. He has a dealer who is really good saying that he will order him a pulley and belt to keep under warranty - all well and good. But...wouldn't you HAVE to get a tune to properly utilize new equipment, or will the computer "adapt" to new conditions? Thanks for all input!

cgr
 

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Coming from my tuner....He states he does not recommend any pulley upgrades without a tune. He says you are asking for trouble.
 
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