Bought this to lighten the load on my Marlin Roadster kit car clutch.
Delighted with the improvement it produced. Very easy to fit despite the limited space under my bonnet.
Although it did not really need it I did purchase a second hand
vacuum pump to boost the vacuum from my MBG engine which
now had to power both the brake and this new servo.
I understand that more modern engines produce less vacuum so such an addition might be needed.