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      03-03-2021, 05:47 PM   #4
TopJimmy
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Drives: 2023 M3 Comp xDrive
Join Date: Jul 2019
Location: Chester County, PA

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For $2.5K there better be a dyno report showing a miracle. On a stock motor, stock turbos and stock fueling a custom 93 full-kill tune gets you about 550WHP. That price can't include HPFP upgrades. I'm suspicious...

I would suggest a custom Paul or Cary BM3 tune and save $1500 for new fatter rear wheels and drag tires.
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