S58
G8X / S58
2021+ M2, M3, M4, M3 Touring, M4 Convertible
3.0L Inline-6, Twin-Turbocharged
Stock Power
440–470 WHP
Max: 1200+ WHP with built motor
Power stages
| Stage | 93 Octane | E70+ |
|---|---|---|
| Intake Only | 435–465 WHP | 435–465 WHP |
| Downpipes Only | 440–470 WHP | 440–470 WHP |
| Tune Only (Stage 1) | 500–530 WHP | 620–650 WHP |
| Tune + Intake | 520–550 WHP | 640–670 WHP |
| Tune + Downpipes | 530–560 WHP | 650–680 WHP |
| Full Bolt-On (Stage 2) | 560–630 WHP | 720–760 WHP |
| FBO + Flex Fuel | 580–630 WHP | 730–780 WHP |
| Turbo Upgrade + Tune | 700–800 WHP | 855–925 WHP |
| Turbo + Tune + Flex Fuel | 750–850 WHP | 925–990 WHP |
| Turbo + FBO + Flex Fuel | 780–870 WHP | 950–1030 WHP |
| Turbo + Built Motor | 900–1000 WHP | 1135–1235 WHP |
| Turbo + Built Motor + Built Trans | 1000–1200 WHP | 1235–1600 WHP |
Platform Guide
G8X S58 Power Guide: Stock to 1600+ WHP
Everything you need to know about building an S58-powered M3, M4, or M2 — from a tune-only Stage 1 through big single turbo builds making 1600+ WHP.
Build one in the app
Configure parts, see real-time WHP estimates, and track your budget.