Im pretty sure you can get by with just the HPFP being upgraded and if you are trying to max out power potential, that's when you'd truly need a upgraded LPFP
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435i M-Sport | Pure Stage 2 Turbo | MHD Tune | XHP Stage 3 | Wagner Comp Evo 2 | MPE | Evolution Racewerks CP/DP/TIC | M-LSD | XDI-35 |
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