i've seen a BT build on another forum where the owner is using RS4 coil packs
doing a little googling i've come up with the only difference being the colour (they are red topped) and don't provide any performance benefit according to some RR tests done by APR on another forum
but then another source states that they might increase longevity - and yet ANOTHER source that says the only difference is the colour, and with them being "E" revision coil packs they'll be worse than the coil packs that were issued in the recall ("F" revision)
what are peoples' opinions/experiences?