Does the mod builder replace a custom tune review?

No. This tool matches your current hardware to the closest known tune path so you can estimate a realistic power target before you request a quote.

Why did I get a lower-stage recommendation?

The builder prefers safe supported paths. If the requested fuel or tune level exceeds your current hardware, it will fall back to the closest supported configuration and show the missing upgrades.

BMW Mod Builder

Select your BMW, fuel, and supporting mods to find the closest supported tune path and reference power target for your current setup.

Build your setup

Vehicle

Fuel

High-flow downpipeUpgraded intercoolerUpgraded HPFPPure / upgraded turbo

Results are based on our published tune profiles and selected hardware. Final output still depends on fuel quality, vehicle health, and the exact calibration strategy.

Request Tune Quote

Best Matching Tune

B58G stage1 93

HIGH CONFIDENCE

Up to horsepower

460 HP

Up to torque

640 NM

Stock HP
Stock TQ
stage1 93 HP
stage1 93 TQ

Modeled estimate from platform reference data and the matched tune path — not measured chassis-dyno output. Real numbers depend on fuel quality, hardware condition, and calibration.

Recommended next upgrades

High-flow downpipe

Why this result?

Vehicle maps to engine b58g.
All required hardware is present.
Selected fuel exactly matches this tune profile.
Stage is the best fit for selected hardware.
Exact supported match.
Selected fuel exactly matches this tune profile.
Recommended next upgrades: High-flow downpipe.