G20 330i B48 stage 1 - 300hp achievable?

@boostislife

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3 months ago

Got a 2024 G20 330i with the B48 engine (258hp stock). Ive seen some tuners claiming 300hp+ with just a stage 1 remap. Is this realistic or marketing BS?

Would love to hear from anyone whos actually done it and has dyno numbers.

2598

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3 months ago
#1
E Euro Mechanic
@euro_mechanic
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300hp is definitely achievable on B48 with stage 1. My 330i made 305hp on the dyno with just a remap. No hardware changes needed.
3 months ago
#2
V ValvetronicE90
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can confirm, my 2023 330i made 298hp on a Maha dyno with BM3 stage 1. so 300+ on a dynojet is realistic

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