Im wanting to retrofit a 6 speed gearbox in my 2008 mk5 golf 2.0L SDI which is currently 5 speed. can anyone tell me a good 6 speed box to use, bearing in mind the sdi is a very low power engine, I just want better mpg from it cruising on the motorways etc. I NEED A GEARBOX THAT IS 6 SPEED BUT NOT TOO HIGH GEARED THAT IT DOSENT MOVE!
HAS ANYONE DONE THIS BEFORE CANT BE JUST ME WANTING CHANGE!