Arden additional ECU for 4.0 and 4.2 supercharged cars ( XJR, XKR, STR ).
Good improvment if you have stock or near stock car, ie. lower or upper pulley, intake and exhaust mods. Fueling and ignition timing has been optimised for EU 98 / US 93 fuel. Arden has rated this as 35bhp mod. Installation takes 2-3h and removing 15min. Stock ECU works as before since this box is specially made for these Jaguars , no error codes. Driven one summer, about 8,000km. In perfect condition. Price: EUR 2200 . If you need easy and sure solution for your car please send PM or email: samivirtanen 53 @ hotmail.com , phone: +35 8 50 4102 88 8