Mitchell Auto Engineering is a place I highly don't recommend, it took them 6 weeks to half complete a job. At the end of 6 weeks they told me to take my car else where as they could be making bigger money on easier jobs, and that's after I had already paid $30 dollars under the quoted price.
Their work on my car in my opion was substandard, the intercooler pipping sits two high (as seen in the pic below) so therefore the bonnet can't be shut.
To make matters worse when I got my car back the AFM and radiator where sitting on the front seat (now dirty)
They still haven't given me back a whole list of parts.