Over the past few months, we here at ECU Tuning Group, have paid more attention particularly to the 5.0L supercharged Jaguars than any other vehicle. Through the months of testing and data logging, we noticed that there are absolutely no internal differences, other than exhaust (XKR-S), between the 470hp, 510hp, and 550hp Jaguars. As stated on our previous blog (Jaguar XKR-S ECU Tuning), Jaguar placed limiters within the software that affect each model differently. By pinpointing the location of these exact limiters, removing them and giving the vehicle a further tune, we are now able to transform any 470/510hp Jaguar into a xkr-s…and then some solely with an ECU tune. This a great opportunity for customers who need the convenience of a four door car but want the added performance of the XKR-S.

Gains achieved:

                Factory                    ECU Tune                        ECU Tune w/ Pulley

470hp                          565hp+                                   590hp+

510hp                           565hp+                                  590hp+

550hp                          575hp+                                    605hp+

Beneficial features of reprogramming the ECU: removal of speed limiter, increased exhaust note, flatspots/hesitation removed for better driveability.

For owners who are not accessible to any of our dealers, you are in luck. We are offering a new package where you will be able to reprogram your vehicle through the OBD II port in the comfort of your own home. The process is simple, safe, and easy. Contact us directly for more information. 

We can now tune the Range Rover Evoque, the only way for us to program it at present is by bench flashing the control unit. We will post dyno sheets soon.

Having tuned cars for over 2 decades we understand the importance of fuel and concerns that drivers have. Golden rule; always use the highest octane available. Customers in California, we recommend using 76 Gas. If ever you decide to use race fuel, the car will adapt to the higher octane within 30 miles.

Every tuner has their own preference when it comes down to an air intake or replacement air filter, us as a company recommend BMC Air Filters.

I prefer to only replace the panel filter unless its a car like the Audi R8 where a cone filter is used. The cone filter sits inside the air-box so it’s not sucking in hot air. If you use a cone filter, which is exposed to engine heat, it will suck in hot air rather than cold air.

 We have recently partnered up with 212 Motoring to be our New York dealer. For customers in or around the area may contact 212 Motoring for all their tuning needs.

212 Motoring
3939 Emmons Avenue
Brooklyn, NY 11235
Tel: (718) 743 3200

2018 Hylan Blvd
Staten Island, NY 10306
Tel: (718) 980 0900

Late last year, we were invited by a Jaguar dealership to read the data in the Jaguar XKR-S ECU (engine control unit). After comparing the data between the 470hp, 510hp, and 550hp there are certain limiters written in the factory software that affect each model differently. By tuning the ECU, those limiters which have been discovered will now be removed. In conjunction with the regular ECU tuning (speed limiter, hesitation/flatspots, etc.) the new software uploaded into each vehicle will be from the same specifications of the new XKR-S. The only benefit other than hardware from the new XKR-S, is the factory upgraded exhaust. By completing the ECU tuning in the XKR-S, utilizing the factory exhaust system, we can take this car to 605hp with just the ECU tune and pulley.

Customers who wish to see similar results, we recommend purchasing a Quicksilver exhaust.

A: Manufactures don’t have an engineer sitting at the end of the production line with a laptop to program each car individually. All cars arrive from the manufacturer with identical programming on board. Once we know the limits of each make and model we can then program accordingly.

 Q: If a customer from California buys a car from New York does that mean that the car has to be programmed for 91 octane fuel as well as the California climate?

A: No, the car will automatically adapt to changes in fuel and climate.

 Q: Will I notice the difference?

A: Yes, you will notice the difference right away but the car will continue to get faster and faster as it goes through an adaptation period that usually lasts up to 100 miles.

 Q: My friend had his car tuned and he couldn’t feel the difference. Why?

A: It really depends on which tuner worked on the car? Most tuners have a limited amount of knowledge when tuning cars. Obvious signs of amateur workmanship can be gleaned by asking how many car manufacturers a shop covers. If the shop is capable of tuning one type of car, logic follows that he should be able to tune any car. Software is software after all. Beware of those touting allegiance to one particular manufacturer.

 Q: Will it affect my warranty?

A: Our software is completely undetectable. Most of our customers are actually factory supported dealerships.

 Q: What if the dealer updates the software in my ECU?

A: This can happen occasionally during routine service of any car. We offer 2 free re-flashes; for 3 or more re-flashes there will be a charge.

 Q: What if I wish to keep the speed limiter?

A: The speed limiter will be removed unless a customer specifically requests that it be left in place.

 Q: What about servicing the car?

A: The service schedule and procedures remain the same.

 Q: How is the software tested?

A: All files are created and tested using a Cartec LPS2810 dyno. This ensures that we can make correct measurements with DIN, ISO, EWG and other corrections. The dyno uses correct cooling fans (a $30 fan from your local hardware store is not going to simulate the same airflow when driving on the freeway). The variables in a non-controlled environment such as airflow, fuel, temperature, etc make a huge difference to the results.

 Q: What If I have other modifications done to my car?

A:  Other after-market modifications do not pose a problem for our software. We can create the file accordingly to facilitate seamless integration with any other performance enhancing modifications. If you decide to add an exhaust or intake, the car will adapt after 30-40 miles.

A: Manufactures don’t have an engineer sitting at the end of the production line with a laptop to program each car individually. All cars arrive from the manufacturer with identical programming on board. Once we know the limits of each make and model we can then program accordingly.

 Q: If a customer from California buys a car from New York does that mean that the car has to be programmed for 91 octane fuel as well as the California climate?

A: No, the car will automatically adapt to changes in fuel and climate.

 Q: Will I notice the difference?

A: Yes, you will notice the difference right away but the car will continue to get faster and faster as it goes through an adaptation period that usually lasts up to 100 miles.

 Q: My friend had his car tuned and he couldn’t feel the difference. Why?

A: It really depends on which tuner worked on the car? Most tuners have a limited amount of knowledge when tuning cars. Obvious signs of amateur workmanship can be gleaned by asking how many car manufacturers a shop covers. If the shop is capable of tuning one type of car, logic follows that he should be able to tune any car. Software is software after all. Beware of those touting allegiance to one particular manufacturer.

 Q: Will it affect my warranty?

A: Our software is completely undetectable. Most of our customers are actually factory supported dealerships.

 Q: What if the dealer updates the software in my ECU?

A: This can happen occasionally during routine service of any car. We offer 2 free re-flashes; for 3 or more re-flashes there will be a charge.

 Q: What if I wish to keep the speed limiter?

A: The speed limiter will be removed unless a customer specifically requests that it be left in place.

 Q: What about servicing the car?

A: The service schedule and procedures remain the same.

 Q: How is the software tested?

A: All files are created and tested using a Cartec LPS2810 dyno. This ensures that we can make correct measurements with DIN, ISO, EWG and other corrections. The dyno uses correct cooling fans (a $30 fan from your local hardware store is not going to simulate the same airflow when driving on the freeway). The variables in a non-controlled environment such as airflow, fuel, temperature, etc make a huge difference to the results.

 Q: What If I have other modifications done to my car?

A:  Other after-market modifications do not pose a problem for our software. We can create the file accordingly to facilitate seamless integration with any other performance enhancing modifications. If you decide to add an exhaust or intake, the car will adapt after 30-40 miles.