Plus Plus Calibration delivers custom Porsche ECU and TCU tuning in Phoenix, Arizona, with dyno-verified gains across the entire modern Porsche lineup. From the twin-turbo 991.2 and 992 Turbo S to the GT3's 9,000-RPM 4.0-liter flat-six, our calibrations are developed in-house on our chassis dyno, verified with full data logging, and delivered with before-and-after documentation so you know exactly what your car picked up.
Our calibration work covers the full modern Porsche range. The most common platforms we see in the shop:
Our Stage 1 Porsche calibration is developed for stock hardware running pump 91 or 93 octane. We remap ignition timing, boost targets, torque limiters, and cam phasing to extract the maximum safe power the factory exhaust and intercoolers can support. Typical gains on the 992 Turbo S are 55-75 whp and 60-90 lb-ft peak, with substantially bigger gains in the mid-range where factory tuning is conservative for emissions and longevity targets. Every Stage 1 tune comes with a pump-gas calibration and a track-gas (E30 or 100-octane) option if your platform supports flex-fuel.
Stage 2 is where the 911 Turbo and Cayenne Turbo platforms really wake up. With high-flow downpipes, upgraded intercoolers, and in some cases a cold-air intake, we can push well past 800 whp on the 992 Turbo S with stock turbochargers — the limiting factor becomes fuel system capacity and clutch pack torque tolerance. For track-focused builds we recommend pairing Stage 2 with a PDK TCU tune to raise the torque limits and tighten shift logic, since the stock TCU will otherwise clamp power delivery to protect the transmission.
Porsche's PDK is one of the strongest dual-clutch transmissions ever produced, but the factory programming is intentionally conservative on clutch clamping pressure and shift firmness. Our PDK TCU calibration raises clutch pressures (eliminating slip under boost), tightens shift timing, adjusts kick-down thresholds, and raises the torque ceiling so the ECU no longer pulls timing to protect the transmission. The result is sharper, more aggressive shifts that feel like the PDK you always wanted, plus the ability to safely run Stage 2+ power levels without slipping.
Several Porsche platforms can safely run E85 with a properly developed calibration and supporting hardware. We build dedicated E85 flex-fuel maps for the 911 Turbo, Cayenne Turbo, and Macan Turbo platforms, taking advantage of ethanol's higher knock resistance and cooling properties to substantially raise boost targets and ignition timing. A Stage 2 992 Turbo S on E85 can comfortably exceed 900 whp on stock turbochargers — the highest safe output we've seen from the factory turbo hardware.
Every Porsche tune we deliver includes dyno sheets documenting stock vs. tuned horsepower and torque across the RPM range, a full data log showing air-fuel ratios, knock counts, and boost pressure under load, a written summary of every calibration change, and a road-drive verification to confirm drivability. For out-of-town clients we coordinate hotel recommendations in north Phoenix, and we can typically complete a Stage 1 tune in a single day. Your Porsche goes home faster, more responsive, and documented.
Yes — modern Porsches (991.2 onward) log ECU flash events that dealers can read. The flash counter exists regardless of what tune you apply. We're transparent about this: under warranty, a dealer may use flash counter data as grounds to deny a claim. For out-of-warranty cars this is a non-issue.
On most 991.2 and 992 platforms we can flash the ECU via the OBD port without removal. Cayenne Turbo, Panamera, and Macan variants likewise flash on-car. A small number of newer platforms require ECU removal; we'll tell you up front if yours does.
On stock turbochargers and a well-developed flex-fuel calibration, 900+ whp is reliable with supporting hardware (downpipes, intercoolers, stronger clutch packs). Beyond that you enter turbo and fuel system upgrade territory.
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