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MST

MST NEW Design Cold Air Intake System BMW M2 / M3 / M4 S58 G80/G82/G87

MST NEW Design Cold Air Intake System BMW M2 / M3 / M4 S58 G80/G82/G87

$816.80 USD
$866.80 USD $816.80 USD
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BW-S5806

The MST Performance BW-S5806 is the next evolution of MST's intake lineup for the BMW S58 platform, designed specifically for enthusiasts and tuners pushing their G80 M3 or G82 M4 Competition into high-power territory. Building on the proven foundation of the single-sided BW-S5802, the BW-S5806 introduces a dual-sided, dual-filter configuration that dramatically increases airflow capacity at elevated RPM, exactly where high-power builds demand it most.

While the BW-S5802 remains an excellent choice for stock or mildly modified setups, the BW-S5806 is purpose-built for Stage 2+ tunes, upgraded turbos, and any build targeting serious top-end power. The results speak for themselves: on a vehicle already running a Stage 2 tune on 98 RON fuel, a simple swap from the BW-S5802 to the BW-S5806, with no other tuning changes, yielded nearly +20 WHP at peak and a staggering +59 WHP at 6,300 RPM.

Upgrade from BW-S5802 → BW-S5806The test vehicle was running a Stage 2 tune on 98 RON fuel, producing 639 WHP with the BW-S5802 installed. After fitting the BW-S5806 — with zero tuning changes — peak power climbed to 656 WHP. More critically, after 4,500 RPM the gap between the two intakes widens significantly, reaching+59 WHP and +67 Nm at 6,300 RPM. If your build is pushing past 600 WHP or targeting maximum top-end performance, the BW-S5806 is the clear choice.

Key Features

  • Dual-sided, dual-filter design — maximises airflow volume for both turbos on the S58 engine simultaneously
  • Significant top-end power gains — power advantage over BW-S5802 increases progressively above 4,500 RPM
  • Dyno-proven performance — tested on Dynojet dynamometer by MST Performance with published results
  • Ideal for high-power builds — recommended for Stage 2+ tunes, upgraded turbos, and builds targeting 600+ WHP
  • High-flow MST performance filter — washable and reusable, engineered for maximum filtration efficiency and flow
  • Direct bolt-on fitment — no cutting, drilling, or permanent modifications required
  • Premium construction — durable intake pipe with precision-machined couplers and clamps included
  • MST Performance quality — designed, tested, and backed by one of the leading intake specialists in the industry

Fitment

  • 2021+ BMW G87 M2 ALL Trims
  • 2021+ BMW G80 M3 ALL Trims
  • 2021+ BMW G82 M4 ALL Trims
  • 2021+ BMW G83 M4 Convertible ALL Trims
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