Is TPIS still around? Anyone use their AFPR? My stock ticks bad and the car runs rough, wanted to replace it. Who is the best to use now? Also what about the PROM, is it ok stock? My '91 has sat in the barn for a few years so Ive lost so knowledge on latest products. Thanks for the help.

 

TPIS is still around. I have one on my camaro right now as i was recommended to use it by the performance shop that i go to. They are good regulators. The downside you will hear on here is that the vacuum fitting on the top wants to break off or that it backed out and caused a leak. Be careful around it and it wont break, and locktight the fitting before you install the regulator. They are fairly inexpensive on ebay as thats where i got mine.