Porsche 911 Carrera S / 4S / Targa / GTS (991.1) ECU tune

Fits 2012–2016 · Stage 1 and Stage 2 · Mail-in

$1,995

Front three-quarter view of a white Porsche 911 Carrera S (991.1) parked under a tree

Stage 1

440hp

370lb-ft

From 395 hp / 325 lb-ft stock

Stage
Horsepower+45 hp
395 hp factory440 hp tuned
Torque+45 lb-ft
325 lb-ft factory370 lb-ft tuned

Tuned figures are estimates; results vary.

Add-ons
  • You ship: your ECU, with your printed order confirmation
  • Turnaround: two business days from when your ECU arrives
  • Return shipping: paid by us

The car

About the Porsche 911 Carrera S / 4S / Targa / GTS (991.1)

Between the 3.4-liter Carrera and the track-focused GT3, the 991.1 range offered a second tier built around a 3.8-liter version of the naturally aspirated, direct-injection flat-six. This page groups every car that used it: the Carrera S and Carrera 4S as coupe or cabriolet, the Targa 4S, and the GTS models that arrived for 2015.

Against the base cars, the S models stepped up to 20-inch wheels and front brakes with six-piston calipers. Each could be ordered with a seven-speed manual or a seven-speed PDK, and drive went to the rear wheels in the Carrera S and Carrera GTS or to all four in the 4S, Targa 4S and 4 GTS versions.

The GTS, revealed in October 2014, drew more power from the same engine and closed the gap to the GT3. Even the rear-wheel-drive GTS uses the wide Carrera 4 body, and Sport Chrono, a sport exhaust, matte black center-lock 20-inch wheels and PASM dampers that lower the car by 10 millimeters are all standard. A Targa 4 GTS joined for 2016.

Stage 1 is calibrated for the car as it left the factory and takes it from 395 hp and 325 lb-ft to 440 hp and 370 lb-ft on pump-grade fuel. Stage 2 is calibrated for supporting bolt-on modifications and high-octane fuel, for 450 hp and 380 lb-ft. The gearbox has its own controller and torque limits, so the optional TCU tune raises them to match, with sharper shifts and stronger clutch clamping.

More about Porsche tuning

Figures & prices

Porsche 911 Carrera S / 4S / Targa / GTS (991.1) tune figures by year

Factory and tuned horsepower and torque from our catalog, with prices for each stage and add-on.

Model yearFactoryStage 1Stage 2Add-ons
2012–2016395 hp / 325 lb-ft440 hp / 370 lb-ft
$1,995
450 hp / 380 lb-ft
$1,995
TCU tune $505

Tuned figures are estimates, not guarantees. Actual results vary with the car’s condition and modifications, fuel quality and octane, temperature, altitude and the dyno used. See our Terms of Service.

How it works

Mail-in tuning, start to finish

  1. 01

    Order online

    Choose your year, stage and add-ons and check out securely.

  2. 02

    Ship your ECU

    Pack it with your printed order confirmation email and send it to our Phoenix shop.

  3. 03

    We calibrate it

    Within two business days of it arriving.

  4. 04

    We ship it back

    Return shipping is on us. Reinstall and drive.

How mail-in tuning worksECU shipping instructions

FAQ

911 Carrera S / 4S / Targa / GTS (991.1) tuning questions

More answers in our FAQ

Which years of the 911 Carrera S / 4S / Targa / GTS (991.1) does this tune fit?

Our online catalog lists Stage 1 and Stage 2 tunes for 2012–2016 Porsche 911 Carrera S / 4S / Targa / GTS (991.1) models. Choose your year at the top of the page; the figures and prices are the same for every year.

What sets the GTS apart from the Carrera S on this page?

Porsche rates the GTS for more output from the same 3.8-liter engine and builds every version on the wide all-wheel-drive body. It also includes items that are options on other Carreras, such as bi-xenon lights with the Porsche Dynamic Light System and the sport exhaust, plus Sport Chrono, lowered PASM and an Alcantara interior.

Which Targa models are included here?

The Targa 4S, introduced for 2014, and the Targa 4 GTS, added for 2016. Both are all-wheel drive with the 3.8-liter engine. The Targa 4 has the same roof but the 3.4-liter engine, so it is listed on 911 Carrera / Carrera 4 / Targa 4 (991.1).

What is the difference between Stage 1 and Stage 2 on the 911 Carrera S / 4S / Targa / GTS (991.1)?

Stage 1 is calibrated for the car as it left the factory and runs on pump-grade fuel. Stage 2 pairs the calibration with supporting bolt-on modifications such as downpipes and runs on high-octane fuel. On a 2016 car, Stage 1 takes it from 395 hp to 440 hp. Stage 2 takes it to 450 hp.

Do I need a TCU tune for the 911 Carrera S / 4S / Targa / GTS (991.1)?

A TCU tune is available as an add-on ($505). It raises the transmission’s torque limits and sharpens the shifts so the gearbox can handle the extra power. Ship your TCU in the same box as your ECU.

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All Porsche tuning

Contact

Talk to our tuning shop

Customers across the US order online and mail us their ECU. Our shop is at 952 W Melinda Ln, Suite D in north Phoenix (Deer Valley, 85027), and local owners are welcome to bring their car in. Call, visit or send us an inquiry.

HOURS Mon - Fri: 8AM - 5PM
Sat & Sun: Closed

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