Selected car

Mercedes GT-4 -AMG GT-4 (X290) AMG GT 63 S 4MATIC

3982 ccm - 470 kW (639 HK) - 900 Nm

Depending on which engine you have in your vehicle, you have different tuning box choices. You have 3 choices for your Mercedes GT-4 -AMG GT-4 (X290) AMG GT 63 S 4MATIC. Please check that you have selected the correct engine from the car list. These are the choices for -AMG GT-4 (X290) AMG GT 63 S 4MATIC with 639 HP. The product images are illustrative and colors may vary from actual product.

Choose chip type. The price includes customs, taxes and fees, no surprises!

Alternative 1

Ultimate

Our top model, most power and durability with quality electronics and remote control included for on/off.

GBP £329,-

In stock

Effect with chip
800 HP ( +25%)

Torque with chip
1106 Nm ( +23%)

Alternative 2

RXT Power Booster

Pedal box for advanced fuel regulation! Fuel economy and more power in the same box. NOTE no increase in HP!

GBP £189,-

In stock

Discover power you didn't know your car had!

Alternative 3

RXT Ultimate

Set of both Ultimate and RXT Power Booster. Maximum effect and fuel savings controlled from your drivers seat.

GBP £419,-

Preorder! Coming soon!

Because of the global shortage of components we haven't been able to obtain enough of this product and may be out of stock.

Effect with chip
812 HP ( +27%)

Effect about 639 HP at 50% throttle