1/2G80 M3 S58 Stage 2 Turbo Upgrade
BMW G80 M3 Competition
S58
Full Stage 2 upgrade package for the G80 M3 S58 engine. Customer requested daily-drivable power with reliable track capability. The G25-660 turbo provides fast spool and strong top-end power, paired with a custom ECU tune optimized for 93 octane fuel.
Parts Installed
Stage 2 ECU TuneKL G25-660 TurbochargerHigh-Flow DownpipeUpgraded IntercoolerCold Air Intake
Build Result
620 WHP / 580 lb-ft torque — a 140 WHP gain over stock while maintaining factory-like driveability.