B58 Gen 2 Build Breakdown (2019+ models)
🚘 B58 Gen 2 Build Breakdown (2019+ models)
Stock WHP: 340
440 WHP (+100 WHP over stock)
- MHD Super License (Link to product)
- MHD Wireless Flash Adapter (Link to product)
- NGK 94201 spark plugs (Link to product)
- RK Tunes Front Mount Intake (Link to product)
- RK Tunes High Output Ignition Coil Packs (Link to product)
- RK Tunes Charge Pipe
- RK Tunes Custom tune (Link to product)
455 WHP (+115 WHP over stock)
All above PLUS below:
- Hi-Flow Catted Downpipe
- 93 Octane
510 WHP (+170 WHP over stock)
All above PLUS below:
- E30 Fuel Blend
- MHD Flex-Fuel Kit (Link to product)
650 WHP (+310 WHP over stock)
All above PLUS below:
- RK Tunes Dual Ball Bearing Turbo
- Port Injection with MOTIV Reflex & 750cc+ Injectors (Link to product)
- RK Tunes Low-Pressure Fuel Pump
750 WHP (+410 WHP over stock)
All above PLUS below:
- Stage 1 Transmission / Upgraded Clutch (manual)
850–900 WHP (+510–560 WHP over stock)
All above PLUS below:
- Full-Frame Turbo (6466)
- Charge Air Cooler / Upgraded Intake Manifold
- Stage 2 or Better Transmission
950–1100+ WHP (+610–760 WHP over stock)
All above PLUS below:
- Full-Frame Turbo (68–70mm+)
- Fully Built Engine
- Full Low-Pressure Fuel Pump System (2+)
Notes (B58 Gen 2):
- ✅ Spark plugs every 10k miles (NGK 94201)
- ✅ Ignition coils every 50K miles
- ✅ New factory direct injectors suggested every 70K miles
- ✅ Hi-Flow Catted Downpipes recommended
- ✅ Charge pipes get brittle and break randomly
- ✅ Manual cars require upgraded clutch at higher WHP
- ✅ Port Injection > DI-only for high WHP builds
- ✅ RK-Tunes parts recommended but not mandatory
- ✅ We NEVER tune with methanol injection
- ✅ See Direct Injection vs Direct Injection + Port Injection breakdown for all cars
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✅ Spark Plug Gaps:
≤550 WHP: .030
551–700 WHP: .025
701–850 WHP: .022
851–1000 WHP: .018
1000+ WHP: .016