I already have the car tuned on a FJO Wide Band 02 system already....
I had the extender on the car already but i think it added 4 degrees of timing about 4k, and i keep the distributor locked at 34-36, so i didnt need it possibly being 40 degrees and it didnt make the car any faster, so i took it off.
a PMS is bad ass you can set the rev limiter to anywhere you want. One of the kids at our shop use to haggle us to drive his mustang, he drove a turbo talon, so we let him drive the car around the shop but we used the pms to set the rev limiter at 2k, he took off and didnt get over 40 the whole way around, lol.