I am going to be buying a new racing seat for an ITA Nissan 240sx and wanted to get reviews and educated on the various seats available. Some of the questions I have are:

Aluminum vs. fiberglass

Brands: Kirkey, Ultrashield, Momo, Sparco etc. etc.

How much does does the safety factor increase from the cheaper seats to the more expensive seats. I am also a Clydesdale so I am looking for a seat for someone 6'4".

Any feedback would be appreciated.