S55 F80 F82 F87 F83 M2 M3 M4 Build Breakdown
🚘 S55 F80/F82/F87/F83 M2/M3/M4 Build Breakdown
Stock WHP: 440
520 WHP (+80 WHP over stock)
- RK Tunes Front Mount Intake (Link to product)
- Hi‑Flow Catted Downpipes
- Custom Tune from RK Tunes (Link to product)
- MHD Super License (Link to product)
- MHD Wireless Flash Adapter (Link to product)
- NGK 97506 spark plugs (Link to product)
- RK Tunes High‑Output Ignition Coil Packs (Link to product)
- RK Tunes Charge Pipe
- RK Tunes Crank Hub (Link to product)
600 WHP (+160 WHP over stock)
- MHD Flex‑Fuel Kit (Link to product)
700 WHP (+260 WHP over stock)
- RK Tunes Upgraded Twin Turbos
- RK Tunes Low‑Pressure Fuel Pump (Link to product)
800 WHP (+360 WHP over stock)
- Upgraded Charge Cooler
1000+ WHP (+560+ WHP over stock)
- Fully Built Engine
- Full Low‑Pressure Fuel Pump System (2+)
- Upgraded DCT Clutches / Manual Clutch
Notes (S55):
- ✅ Spark plugs every 10 k miles (NGK 97506).
- ✅ Ignition coils every 50 k miles.
- ✅ New factory direct injectors suggested every 70 k miles.
- ✅ Hi‑Flow Catted Downpipes recommended.
- ✅ Charge pipes get brittle and break randomly.
- ✅ Manual cars require upgraded clutch as WHP increases.
- ✅ Port Injection > DI‑only for high WHP.
- ✅ RK‑Tunes parts recommended but not mandatory.
- ✅ We NEVER tune with methanol injection.
- ✅ See Direct Injection vs DI + Port Injection breakdown for all cars.
- ✅ Spark Plug Gaps:
- ≤ 550 WHP: .025
- 551–700 WHP: .022
- 701–850 WHP: .020
- 851–1000 WHP: .018
- 1000+ WHP: .016