Fitted a mulfab radiator to my roadster three months ago as old rad developed a leak. The temperature has dropped compared to where it used to indicate on the guage around 8 to 12 degrees. On a hot day last week ( 34c ) the temperature stayed stable and even when stood a traffic lights etc.
As for fitting, I did it from below. Jacked up the car on to two stands, removed the grill and front bracket. Then took of the fibre cowling ( no longer needed ) drained coolant, removed all the fixings brackets and pipes and the rad came out easily with the fan and cowling attached. The cowling for the fan is no longer needed ( that is if you have one ) as the fan fits directly onto the back of the mulfab rad.
You get all the parts you need and instructions how to fit them from mulberry this includes new wing tortion bar, new brackets and rubber mounts, any pipe extentions and clips, and all nuts and washers etc.
Fitting was straight forward for me and did not encounter any problems.
Regards Jim