00–03 E39 M5 / 00–03 E52 Z8 S62 MSS52 CUSTOM N/A TUNE (S1/S2/S3)

BMW E39 M5 and Z8 (2000–2003) custom MSS52 ECU tuning by Poverty Built. Stage 1 (OEM+), Stage 2 (headers & intake), and Stage 3 (advanced bolt‑ons / optional Alpha‑N) deliver OEM‑smooth drivability, sharper throttle response, and conservative, data‑driven gains on the S62 for street and track builds.

Fits:

• 2000–2003 E39 M5 — S62B50, MSS52

• 2000–2003 E52 Z8 — S62B50, MSS52

What Poverty Built does for this platform: Poverty Built focuses on smooth drivability and real, conservative gains. For MSS52 + S62 (ITBs, double VANOS) we calibrate:

• Drive‑by‑wire throttle mapping for crisp but controllable response across Normal/Sport modes

• Fueling (lambda targets) and ignition timing across part‑ and full‑load

• Double VANOS cam targets vs. RPM/load for intake & exhaust

• Air/load model and torque arbitration (MAF‑based; Alpha‑N optional for big‑intake setups)

• Idle control, fan temperature targets, rev limiter, and optional Vmax (top‑speed limiter)

• MAF/injector characterization when hardware changes warrant it

• Diagnostics alignment so plausibility checks match your hardware; EWS alignment/delete available

STAGES, GAINS & PRICING

(Gains depend on health, fuel, altitude, hardware; we quote conservative deltas.)

STAGE 1 — OEM+ Performance (Stock Hardware)

• Gains: ~+10–15 hp / +10–15 lb‑ft (crank)

• Price: $220

• Hardware: 100% stock is fine; healthy sensors; no vacuum leaks; fresh filters/plugs.

• What we change: Throttle mapping (refined Sport button behavior), fueling/timing, double‑VANOS targets, air/load model touch‑ups, rev limiter & Vmax (optional), fan/idle refinement.

• Use: Street. Emissions systems remain active.

STAGE 2 — Headers & Intake Optimized

• Gains: ~+15–25 hp / +15–25 lb‑ft (with quality intake and freer‑flow exhaust/headers)

• Price: $320

• Hardware: Intake and exhaust upgrades; off‑road catless headers or high‑flow catted headers; tight vacuum/charge system; 93 octane recommended.

• What we change: All S1 items plus airflow model updates for intake/headers, more assertive Sport‑mode throttle, enriched VANOS scheduling for top‑end, and WOT fueling/timing tailored to your hardware.

• Use: Street (with emissions present) or off‑road when components are removed.

STAGE 3 — Advanced Bolt‑Ons / Alpha‑N (Custom)

• Gains: Hardware‑dependent; strong midrange/top‑end with carbon airbox/big‑intake and supporting bolt‑ons

• Price: $420

• Hardware: Carbon/large‑volume intake or CSL‑style airbox equivalent, freer exhaust/headers; optional mild cams; robust cooling.

• What we change: Optional Alpha‑N conversion (MAF‑less) with precise load modeling, aggressive but stable VANOS targets, high‑load fueling/timing, idle stabilization for lightweight flywheel/airbox resonance, rev limit/Vmax on request.

• Use: Street (with emissions present) or off‑road when components are removed.

WHAT YOU GET

• OEM manners, quicker response, stronger midrange without surging

• VANOS‑aware tuning for a broad, usable torque curve

• Revisions until it’s dialed (we’ll specify the minimal data to capture)

RECOMMENDED SUPPORTING MODS

• Stage 1: Fresh filters/plugs, tight vacuum system, healthy O2s/MAF, quality fuel

• Stage 2: Intake and freer exhaust, catless headers (off‑road) or high‑flow catted headers, strong cooling

• Stage 3: Large‑volume intake/airbox + headers, high‑flow exhaust, optional mild cams, upgraded cooling; wideband recommended for data

HOW ORDERING WORKS

1. Choose S1 / S2 / S3 and list your hardware in order notes.

2. Provide your MSS52 read.

3. Flash with your preferred tool (simple step‑through available).

4. Send logs → we iterate to finalize.

LEGAL & OFF‑ROAD USE

Any calibration that affects emissions equipment (e.g., secondary air injection, catalytic monitor readiness, rear O2 reporting) is for closed‑course competition/off‑road use only. You are responsible for knowing and following local laws.

POVERTY BUILT DISCLAIMER

By purchasing this product, you agree that Poverty Built LLC is not liable for any damages including, but not limited to: engine failure, drivetrain damage, emissions violations, incomplete tuning results, or any indirect, incidental, or consequential damages arising from tuning services. All tuning is intended for off-road or motorsport use only and is not certified for use on public highways or as a method of emissions defeat. You also agree to our posted refund policy, and acknowledge that tuning results may vary depending on vehicle condition, modifications, and installation quality. It is your responsibility to ensure your vehicle is mechanically sound and properly maintained before and after any tuning service.