Hi all
I have got a standard 1989 E34 535i sport and am considering an inexpensive performance chip upgrade.
I have also seen an advert in a BMW car magazine for a chip called a 'Viper 2' for approx. £50. (this is an Eprom and not a resistor type chip). It states that they give an improvement of approx. 20bhp.
Can anyone verify the performance gains and/or have any experience of this chip.
Many thanks
I have got a standard 1989 E34 535i sport and am considering an inexpensive performance chip upgrade.
I have also seen an advert in a BMW car magazine for a chip called a 'Viper 2' for approx. £50. (this is an Eprom and not a resistor type chip). It states that they give an improvement of approx. 20bhp.
Can anyone verify the performance gains and/or have any experience of this chip.
Many thanks