Porsche 991 Turbo/S

Litchfield Custom Tuning


We are able to recalibrate the Porsche 991.1 Turbo and Turbo S engine management systems directly through the On Board Diagnoistic (OBD) port and can increase power to 600 bhp on the standard car and to 625 bhp when using our titanium exhaust. Recalibrating the ECU takes around 2hours and customers have the option of performing before and after power runs.


Porsche 991.2 Turbos are fitted with a different ECU that requires unlocking prior to OBD tuning. The newer 991.2 engines feature revised billet compressor wheels on the turbos and can therefore produce higher power figures with standard cars increasing power to around 640 bhp and cars with our performance exhaust increasing to around 670 bhp.

991.1 custom tuning

£795.00 exc VAT

£954.00 inc VAT

991.2 OBD unlock and custom tuning

£995.00 exc VAT

£1,194.00 inc VAT

Litchfield Titanium Exhaust

The Litchfield 991 Turbo/S exhaust system was extensively tested on our dyno and on the road to provide significant improvements in both performance and noise.  This unique system is handmade in the UK by the same expert fabricator responsible for some of the very best F1 exhausts of this current era.  We have specified the finest grade Titanium with beautifully crafted mandrel bends and tail trims to complete the exquisite look. High flow Catalytic converters from Germany use the latest emissions friendly coatings which also ensure compatibility with the engine management system whilst reducing exhaust back pressure.

Thanks to it's titanium construction, our new exhaust has reduced the weight by approximately 16kg and liberates an extra 45bhp and 36lbft over the standard system, taking the car to nearly 600bhp without the need for ECU programming.

The throttle response and turbo spool are greatly improved due to the impressive reduction in back pressure. The exhaust note is transformed with a more aggressive bark under full throttle, crackling and popping on the over run for added theatre yet without being intrusive or droning when cruising.

Please specify, when booking, if your car is a 991.1 or 991.2 version as there are small differences in the systems. Both are a complete systems including catalytic convertors and take around 4 hous to install

Litchfield Titanium Exhaust

£4,995.00 exc VAT

£5,994.00 inc VAT


Litchfield / Cobb Custom Tuning - 991.1

We can also use the proven Cobb Tuning V3 Accessport to tune the 991.1 Turbo S. Not only are generic maps available to download from the Cobb Tuning website, but we are able to completely custom tune the cars on both the road and dyno to 610 bhp on a standard car, or to 625 bhp on a car using our titanium exhaust. This allows us to tune for specific fuel requirements (e.g. 102 octane) and for custom engine or turbo application, however we will need to see the vehicle at our workshop.

Package includes:

Increased power and torque over standard and US Cobb Off The Shelf (OTS) maps

Reduced lag with faster throttle response

Improved driveability

Pre-loaded for ease of use

2 Maps included for quick switching between UK grade 95 Unleaded and 99 Octane Super Unleaded

Cobb Accessport with Litchfield Maps installed

£1,995.00 exc VAT

£2,394.00 inc VAT

Further Litchfield Custom Tuning

£250.00 exc VAT

£300.00 inc VAT

Cobb Accessport V3

Ford Focus RS

The Cobb Accessport V3 provides quick and easy access to the ECU as well as reflashing of the ECU back to standard, should the car require an update from the Ford Dealer. It also provides remote assistance and updates from Litchfield’s technical team

Accessport V3 features:

  • Larger, full color, higher resolution screen over V2
  • Customizable multi-gauge display
  • Provide 0-60 times
  • Provide 1/4 mile times
  • Custom RPM ranges for perfect gear changes.
  • In vehicle mount, with on/off switch
  • Faster and easier to use with a familiar face
  • Interchangeable faceplates

HRE wheels

Litchfield are a recognised HRE wheel supplier and we are able to specify a huge range of these fantastic, lightweight centre-lock wheels for the 991 Turbo in a variety of finishes and colours. Please contact us to discuss your requirements as each order is custom made in Germany. The centre-lock wheels on the white 991.1 car in the photos below are HRE P103 monoblok 1-piece, machined from a single piece of 6061-T6 aluminium and clear coated.

Litchfield Lowering Springs

Made to Litchfield's specification by a well-known European suspension manufacturer, our uprated springs for the 991.2 lower the car by around 20mm for improved grip and looks without sacrificing ride comfort. The springs are currently only available to be fitted in our workshop, using our alignment settings.