How important is it to have the car mapped after doing some mods?
The reason i ask is I have a MY98 JDM wagon (that cant be mapped) and i have read on other forums that some people have done some mods and never had the car mapped.
I understand that having it mapped will increase the power to full pontenial but would the ecu not adapt to the changes?
I would like some more power but with the cost of a mappable ecu,having it mapped plus the mods and the value of the car it would be cheaper to sell up and get one already done.
Also I have always run the car on tesco momentum and have no plans on changing,but does it really make any difference to performance?
Saw an old fifth gear and they did a test on fuels and the verdict was there is a very minor increase in BHP but offset against the price of the fuel they couldnt see the point.
Cheers Jason
