S58 · G80 / G82

BMW M3 & M4 G80/G82 — S58 Tuning Guide

BMW's most tunable M-engine in a decade. Stage 2 hits ~620 whp on pump.

Engine Overview

Displacement
3.0L I6
Stock power
473–543 hp
Stock torque
406–479 lb-ft
Induction
Twin mono-scroll turbos
Fuel
Direct + port injection
Redline
7,200 rpm

Stages & Expected Gains

StageHPTorqueRequirements
Stage 1+60–80 hp+70–95 lb-ft93 octane / 98 RON
Stage 2+100–130 hp+110–140 lb-ftCatless DP + intake
Stage 3+180–230 hp+180–210 lb-ftE50 + upgraded turbos

Recommended Mods

Stage 1
  • Stock everything
  • 93 octane
  • Cooler intake (optional)
Stage 2
  • Catless downpipes
  • High-flow intake
  • Upgraded charge pipe
Stage 3
  • E40–E85 flex fuel
  • Upgraded turbos
  • Front-mount intercooler
  • Upgraded HPFP

Known Issues to Watch

Wastegate Rattle

Cold-start tick on early production. Tunes can mask but not fix — warranty claim if applicable.

Charge Pipe

Plastic OEM pipe pops above 22 psi. Aluminum pipe is mandatory at Stage 2+.

  • Wastegate rattle (early build)
  • Charge pipe failure on Stage 2+

Compatible Platforms

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