They also offer an optional exhaust system with remote-controlled valves.
Browsing: Tuning
The tuner starts off by making some significant changes to the engine including a modification from 4.0-litres to 4.4-litres.
Wrapping up the changes is a set of twin-spoke alloy wheels and a drop in ride height which as you can see makes a pretty significant impact.
Dubbed the Range Rover refinement programme but it certainly does not look very refined if you ask us.
The tuner’s exhaust not only improves the vicious V12 soundtrack but also sheds 19 kg (42 lbs).
They reworked the exhaust system and fitted new turbo inlets to help the V6 breathe better.
Without wheels and air suspension, you are looking at $48,008 for the transformation which excludes shipping, fitment and paint.
The interior has not been left alone as the entire cabin has been reupholstered with orange leather, much of which is quilted.
As usual, the interior is totally transformed with an overload of leather and carbon where leather could not be used.
TechArt offers two different power upgrades for the GTstreet R, with the largest being a whopping 800 hp (597 kW) and 950 Nm (701 lb-ft) of torque.