BMW N55 OTS Map Pack (PWG and EWG)

Maximize the performance of your BMW N55 single-turbo inline-six with our dyno-tested, road-proven ECU calibrations. Designed for PWG (Pneumatic Wastegate) and EWG (Electronic Wastegate) models, our tunes offer linear power delivery, increased throttle response, and safe, reliable gains across all fuel types.

Supported fuels: 91, 93, 95 pump gas | E30, E50, E85 ethanol blends

Flashing options: Supported maps can be delivered in an MHD-ready format for flashing through MHD. You may instead choose the appropriate Bimmer Tuning Tools QuickFlash-compatible file or another supported format for your preferred compatible flasher. If Poverty Built needs a file read for the ECU/ROM, we will request it; a full read is not required unless asked.

THIS IS A TRUE OTS MAP PACK

For this product, the stage is part of the calibration specification. Choose the stage that matches your turbo setup, supporting hardware, and fuel. Anything labeled Required Mods must be installed for that map. Items labeled Recommended Mods improve consistency, response, or reliability but are not mandatory unless the stage specifically says otherwise.

This pack is designed to compete directly with the familiar MHD map-pack format: a more affordable, performance-focused set of ready-to-flash maps with stronger power targets where the listed hardware and fuel support them. It is not a bespoke, revision-based custom tune.

Tune Configurator choices are selected separately. Choose the exhaust/overrun behavior you want from the available Tune Configurator. Your Tune Configurator selection does not change the stage and does not replace any required hardware or fuel requirement.

Stage 1 Tune – 91/93/95 Octane (Stock Car Friendly)

✅ PWG Power Output: ~335 HP / 369 lb-ft (500 Nm)
✅ EWG Power Output: ~355 HP / 384 lb-ft (520 Nm)
✅ Optimized boost, fueling, and ignition for a smoother, more responsive powerband
✅ Supports 91, 93, and 95 octane
✅ No additional modifications required

Recommended Mods: High-flow air filter or drop-in intake

Stage 1+ Tune – 91/93/95 Octane, E30 (FMIC Recommended)

✅ PWG Power Output: ~355 HP / 406 lb-ft (550 Nm)
✅ EWG Power Output: ~375 HP / 422 lb-ft (572 Nm)
✅ Supports 91, 93, 95 octane + E30 ethanol blend
✅ Increased boost pressure with adjusted ignition and fueling for better throttle response and mid-range power

Recommended Mods:

• Upgraded front-mount intercooler (FMIC) (to reduce heat soak)

Stage 2 Tune – 91/93/95 Octane, E30, E50 (High-Flow Downpipes Recommended)

✅ PWG Power Output: ~375 HP / 427 lb-ft (580 Nm) (Pump Gas)
✅ EWG Power Output: ~395 HP / 442 lb-ft (600 Nm) (Pump Gas)
✅ PWG Power Output: ~400 HP / 450 lb-ft (610 Nm) (E30/E50)
✅ EWG Power Output: ~420 HP / 464 lb-ft (630 Nm) (E30/E50)
✅ Higher boost and recalibrated VANOS for improved spool and mid-range torque
✅ Supports 91, 93, 95 octane + E30/E50 ethanol blends

Required Mods:

• High-flow or catless downpipes

Recommended Mods:

• Upgraded FMIC (for consistent IATs)
• Upgraded charge pipe (to prevent stock pipe failure at higher boost)

Stage 2+ Tune – 91/93/95 Octane, E30, E50, E85 (FBO with FMIC & Downpipes Required)

✅ PWG Power Output: ~410 HP / 464 lb-ft (630 Nm) (Pump Gas)
✅ EWG Power Output: ~430 HP / 479 lb-ft (650 Nm) (Pump Gas)
✅ PWG Power Output: ~430 HP / 479 lb-ft (650 Nm) (E30/E50)
✅ EWG Power Output: ~450 HP / 500 lb-ft (678 Nm) (E30/E50)
✅ PWG Power Output: ~450 HP / 500 lb-ft (678 Nm) (E85)
✅ EWG Power Output: ~470 HP / 520 lb-ft (705 Nm) (E85)
✅ Optimized boost control and fuel delivery for peak stock turbo efficiency
✅ Supports 91, 93, 95 octane + E30, E50, E85 ethanol blends

Required Mods:

• High-flow or catless downpipes
• Upgraded FMIC

Recommended Mods:

• Upgraded high-pressure fuel pump (HPFP) (for E30+ fueling stability)
• Turbo inlets and outlets (for improved airflow)
• Aftermarket diverter valve or blow-off valve (for better boost control)

Stage 3 Tune – PS2 / 19T Hybrid Turbos (91/93/95, E30, E50, E85)

✅ PWG Power Output: ~480 HP / 516 lb-ft (700 Nm) (Pump Gas)
✅ EWG Power Output: ~500 HP / 531 lb-ft (720 Nm) (Pump Gas)
✅ PWG Power Output: ~510 HP / 542 lb-ft (735 Nm) (E30/E50)
✅ EWG Power Output: ~530 HP / 558 lb-ft (756 Nm) (E30/E50)
✅ PWG Power Output: ~540 HP / 570 lb-ft (773 Nm) (Full E85)
✅ EWG Power Output: ~560 HP / 586 lb-ft (795 Nm) (Full E85)
✅ Fully revised boost targets, wastegate strategy, VANOS, and fueling for upgraded turbos
✅ Supports 91, 93, 95 octane + E30, E50, E85 ethanol blends

Required Mods:

• All Stage 2+ requirements
• Upgraded turbos (PS2 or 19T hybrids)
• Upgraded low-pressure fuel pump (LPFP) (Walbro 450+ recommended for E blends)
• Aftermarket turbo inlets & outlets (for better flow)
• Port injection or upgraded HPFP (for full E85 support)

Recommended Mods:

• Larger charge pipes and intercooler (for better IAT control)
• Aftermarket exhaust system (for improved flow)
• Upgraded clutch (for manual cars)

Important Notes:

• Power figures are estimated and may be off by a percentage and may vary depending on fuel quality, supporting mods, and climate conditions.
• All tunes retain OEM safety features and fail-safes for engine longevity.
• Ethanol blends require proper fueling upgrades to prevent fuel pressure drops.

Need tuning built specifically around a unique or non-standard setup? Bespoke calibration and revision-based custom tuning are available through UNDSPTD.

Helpful guide

Use the BMW N55 PWG vs EWG identification guide before choosing a map pack. Verify the actual turbo and controller rather than assuming from model year alone.