I understand from the newbies rules I have to say a little about myself so here goes. My names Bob Monkhouse, I'm 53 and live in Yorkshire, England. I have two sons and a daughter, both my sons own RX7's(FD's) and I spend all my waking hours working on the things!!
My youngest son Grant,( hence the handle 'Grantsdad') also owns an RX4. This car is one of only 400 sold in the UK in '74-'75 and as far as we can tell, is one of around 4 or 5 left. (Grants FD is a genuine UK car, one of 124 sold over here, we believe it is one of around 40 left.( Most FD's in the UK are Japanese imports)'.
I have had this club recommended to me by one of the members of Ausrotary( Australian Rotary club) and hope to pick the brains of some of your experts over in the States.
For anyone reading this please look for a future post of mine in the newbies section on PP'd n/a exhaust systems, Grant is having a PP'd 13B in his RX4 and I really need advice on designing the correct exhaust system for the car and you guys seem to be the ones to ask for advice.
Thanks in anticipation for anyone prepared to share their knowledge.

Bob Monkhouse, Huddersfield, Yorkshire, England.