Porsche 987 Boxster Spyder Dyno, Baseline vs ECU Tune br 3.4 Liter DFI DOHC 24-Valve VarioCam Plus br Gains: +15wHp & +17wTq br Mods: Custom Headers & Exhaust br Gasoline: CA91 pump gas br OE Tuning br sales@oetuning.