Options are as follows: 1) The simplest variant, adding 6th gear without changing 4th gear... 2) Extreme variant, adding 6th gear and changing 4th gear. Then, ratios 0.65, 0.59 can be used for 6th gear...
Hello, the easiest and cheapest way is conversion to 6 speed to eurotuning http://www.eurotuning.cz/images/image/en/optimizing/index.html Regards EuroTuning