Porsche 991.2 Carrera

The Porsche 911 is a performance icon and in the latest 991.2 variant offers both incredible levels of performance and refinement. With the switch to all 3.0 Litre turbo charged engines there is significant opportunities to improve this performance. We have our own 3.0T development vehicle in the form of our Carrera T so we will be producing the very best engine, chassis and cosmetic options for all of the 991.2 Carrera models.

"The fact such relatively minor modifications unleash so much more performance and character in the engine is nothing less than a revelation."

Car Magazine - 25/09/18 - Litchfield Carrera T

"If you have a Carrera T and want more power and sharper handling, send it to Litchfield. If you want one of the most rewarding and engaging sub-£100,000 sports cars on sale today, buy a Carrera T and send it to Litchfield. It’s that good."

Autocar - 05/10/18 - Litchfield Carrera T

Litchfield OBD Custom Tuning

We offer a fully re-calibrated engine management system, providing significant increases to both power and torque. This customised ECU mapping releases considerably more power than standard or ‘off the shelf tunes’ and allows us to create a really smooth, driveable car. The process is straight forward and no longer requires the ECU to be removed and unlocked. We are now able to plug directly into the car and tune it straight away via the OBD port. This offers fast programming or reverting back to standard.

We have invested in our own 3.0T powered 991.2 so we have been able to fine tune the calibration on our Maha Dyno (the same used by Porsche) but more importantly we are living with our setup day to day on both the road and track. We feel we have developed the ultimate software upgrade for the 991.2 turbo engine.

All the current 3.0 Turbo engines are the same except for the turbos themselves; the Carrera S uses a slightly larger compressor wheel and the GTS uses both a larger compressor wheel and turbine wheel to increase power.

Our software upgrade for standard 911.2 Carrera models provide the following increases when using Shell Vpower:

Model Power Torque
Carrera and Carrera T Standard 365 bhp (370 PS) 332 lbft (450 Nm)
Carrera and Carrera T Litchfield Remap 460 bhp (466 PS) 430 lbft (583 Nm)
Carrera S Standard 414 bhp (420 PS) 369 lbft (500 Nm)
Carrera S Litchfield Remap 493 bhp (500 PS) 430 lbft (583 Nm)
Carrera GTS Standard 444 bhp (450 PS) 406 lbft (550 Nm)
Carrera GTS Litchfield Remap 532 bhp (540 PS) 479 lbft (650 Nm)

Litchfield Custom Tuning

£600.00 exc VAT

£720.00 inc VAT

Remote Custom Tuning Available

Cobb Accessport

The Cobb Accessport provides a fast and convenient way of tuning compatible vehicles. The large, full colour, high resolution screen allows you to simply follow the onscreen prompts to successfully tune your vehicle at home or at the circuit. The Accessport comes pre-loaded with Cobb’s excellent Stage upgrades but it also allows Cobb Master Tuners, like Litchfield, to provide even more focused and powerful custom tunes to suit your car and hardware upgrades. Once tuned the Accessport can be placed in its neat case in the glove box or is in-cabin mountable to allow you to monitor up to six parameters in real time so you can monitor the cars performance. Using the free Accessport manager software you can simply upload datalogs or revised files so you’re tuning can evolve as any new parts are installed.

Should your car develop a problem you can easily record a datalog for remote assistance or read and clear fault codes using the Accessport.

Fully customizable from the look (multiple bezel colours), layout (set up a race, street or dyno gauge cluster) and mounting options (choose from 1,000s of standard vehicle mounts).

The Accessport allows you to uninstall your tuning at anytime which reverts the calibration back to standard. Once uninstalled the Accessport can be sold or installed on another similar vehicle giving real value to your investment.


Cobb Accessport with Litchfield Custom Map

Vehicles without PDK.

£1,840.00 exc VAT

£2,208.00 inc VAT

Cobb Accessport with Litchfield Custom Map

Vehicles with PDK.

£2,395.00 exc VAT

£2,874.00 inc VAT

The hardware changes can be installed to improve performance on their own but when combined with our ECU recalibration the increases are even greater. We will be developing a number of hardware upgrades to further enhance the 3.0T performance.

991.2 Exhaust Options

We offer a number of exhaust options to suit each customer’s requirements. The standard Porsche 3.0T exhaust is very restrictive and relatively quiet, even with the popular ‘Sports Exhaust’. The options below solve this problem and provide tangible improvements in both engine performance, weight saving and exhaust note character. Both the Remus and Akrapovic rear silencers can be installed easily and require no changes to the standard ECU calibration.

Akrapovic Slip On Line Titanium Exhaust System

Akrapovic are the world leader in titanium exhaust systems and are featured on everything from MotoGP winners, LeMan LMP Audis to the most converted supercars. Akrapovic even produced the titanium exhaust system for the original Porsche GT3 RS. We are proud to say we are Akrapovic’s largest UK dealer and have even helped develop some of their newer systems.

Slip On Line with Link Pipes

For the 3.0T engine Akrapovic offer solutions to suit both the standard and Sports exhaust options. The power gains and weight saving is significant over the original systems but the Akrapovic system has also been tuned to give an aggressive tone and increased overrun theatre when pressing on. Despite this it still remains cultured and smooth sounding on a motorway cruise or with the valve closed.

The Akrapaovic Slip-on Line is made from their own propriety Titanium and reduces weight by over 35% and provides a power increase of +19 bhp and +28.5 lbft! For those customers looking for the ultimate setup Akrapovic also offer Sport CAT link pipes that further improve the exhaust gas flow and aural quality. When combined with the Slip-on Silencer the power increases by +23bhp and 33.9lbft, incredible increases from just an exhaust and an example of how restrictive the OE system is. Even greater gains are available when combined with our ECU remap.

The Slip-on rear silencer is finished with titanium rear tail pipes and can be further enhanced with the addition of Akrapovic rear carbon diffuser (available in Matt or Gloss Carbon finish).

Slip On Line

For OE sports exhausts

£5,016.82 exc VAT

£6,020.18 inc VAT

Slip On Line

For OE non sports exhausts

£5,016.82 exc VAT

£6,020.18 inc VAT

Link pipe set with cat

For OE non sports exhausts

£3,340.70 exc VAT

£4,008.84 inc VAT

Sound Kit

Required to control the valves on the non Sports exhaust modes

£768.92 exc VAT

£922.70 inc VAT

Litchfield Sports Catalytic Convertors

To further improve exhaust flow and reduce back pressure we have produced our own Sports Catalytic Convertors that significantly reduce the back pressure on the engine to improve performance and response from the turbos. Our Sports CATs use the largest high performance HJS substrate and are manufactured and coated in Germany to meet the latest emission standards. These new Sports CATs are incorporated into our redesigned cone housings to offer improved flow into and out of the substrate to further increase their efficiency. The Litchfield Sport CAT’s can be fitted to any aftermarket Porsche Sports Exhaust compatible silencer and are fabricated in-house for a perfect fitment.

Litchfield Sports Catalytic Converter

£1,995.00 exc VAT

£2,394.00 inc VAT

Litchfield Turbo Manifold

The original 3.0T turbo manifolds use a restrictive pressed log design that combines the three cylinders on each bank before exiting into one small pipe before the turbos. Internally these manifolds have large supports to strengthen the oval shape but these would cause a significant flow restriction, coupled to the a small outlet.

We have designed and manufactured our own tubular headers that use CAD design to optimise the shape of our 3-into-1 manifold. The new design smoothly merges each port into the free flowing collector just prior to the turbo entry. This helps reduce the exhaust pulse interference and drastically changes the way the turbo responds. The turbos spool much faster, providing almost immediate throttle response even from very low in the rev range. The engine pulls more urgently higher up the rev range and the exhaust note has a cleaner and crisper note to it.

The Litchfield manifold combined with a free flowing exhaust from Remus or Akrapovic plus our recalibrated ECU will see the Carrera engine produce over 480 bhp and with the larger turbos found on the Carrera S and GTS models there is significantly more to gain.

Litchfield Turbo Manifold

CAD design

Litchfield Turbo Manifold

£1,495.00 exc VAT

£1,794.00 inc VAT

Litchfield 3.0 Carrera Turbo Upgrade

We have been developing these turbos for some time and have run them successfully on our own 991.2 Carrera T. These turbos use a similar compressor wheel and turbine wheel sizes to the 991.2 GTS models and this allows them flow enough air to comfortably make 600bhp with supporting modifications. The Compressor wheel is further enhanced with its billet construction which is both lighter than the standard wheel and also features extended tips to increase airflow further without creating additional lag. The central core is equipped with the latest uprated 360 thrust bearings which aid throttle response and improve durability.

These turbos are upgraded on an exchange bases with each turbo being fully overhauled, inspected and balanced to make sure that the performance and reliability are at OE levels.

Litchfield 3.0 Carrera Turbo Upgrade

£2,590.00 exc VAT

£3,108.00 inc VAT