Has anybody tried this product -
Which (in case my copy & paste above doesn't work) is the Magnum Dyno-BOOST.
Magnum claim mighty performance increases for the YRV (mine)and petrol Rocky and Feroza (about which I know very little except that they are really tough).
Their description calls it a 'chip', but I know it's probably really something like a fixed 4.7Kohm resistor (a few pence at Maplins) which substitutes for the inlet air temperature sensor and fools the ECU into thinking the air is much colder, so in ecologically friendly manner the ECU calls for more petrol, which they say produces more power (rather than an over-rich mixure to mess up the cat?).
Any particularly long-term experiences of this type of product?