Did you install it with an oil restrictor?I bought a HX40 from this company in April. I have done no more than 300 miles at low boost and I was told on Monday that the seals have failed on the unit and as a result the car is bellowing smoke from the oil that is passing the seal under pressure.
I have contacted the company as it should have a 5 month warranty left, but as it stands I have had no reply.
Its true what is commonly said though, if it looks too good to be true, then it more than likely is.
Not best impressed with this company and their product