Speed Density Tuning (Add-On)

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📊 Speed Density Tuning (Add-On) This add-on is required for vehicles running Speed Density (SD) or setups that no longer use a MAF sensor. This includes:• Rotated turbo setups • Bl ow-off valve (BOV) setups • MAF delete configurations • Any Speed Density conversion ✔ Applies to BOTH:• New tunes • Retunes ⚠️ EJ Engines:A Speed Density harness is REQUIRED. ⚠️ FA20 / FA24 Engines:No harness is required. Due to the increased complexity of tuning without a MAF sensor, this add-on is necessary to properly calibrate airflow, fueling, and drivability. ⚠️ Important:If your setup requires Speed Density and this add-on is not selected, your order will be delayed until corrected. This ensures your vehicle runs safely and correctly for your configuration. Show more