Lexus IS Forum banner
1-2 of 2 Results
  1. General Discussion
    i recently got my is300 and want to hollow out 1 out of the three catalytic converters. will i be able to pass emissions during smog in california?
  2. Basic Help & Repair
    Bought this car before smogging (like an idiot) and failed two different smog places. The y pipe containing the 3rd cat was taken out when putting in a custom exhaust. Part for reference: Thankfully the manifold wasn't touched, just from the manifold back I think. Does anyone know if I can...
1-2 of 2 Results