Fi EXHAUST
REVIEW

Aftermarket automotive community thoughts about Fi
BMW F97 X3M Competition (OPF) S58 660HP Tuned w/ Valvetronic Fi EXHAUST X ECU Remap X AutoTopNL

In stock form F97 X3M Competition is making 510hp, 650Nm and can accelerate from 0-100km/h in 4sec. The performance on average can be boosted by 5-10% after equipping our complete exhaust setup without a tune. But with a tune it can be taken further. Case in point AutoTopNL did a custom Mosselman ECU remap enhancing the performance to 663,5 hp, 873 Nm on premium RON98 fuel. And the acceleration timing from 0-100km/h improved to 3.43 sec.

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