those any one ever used this Vibrant 11619 J-Style Oxygen Sensor Restrictor Fitting with Adjustable Gas Flow Inserts do they work. i have a bassani off road x-pipe with 2 hiflow cat but my engine light still come on for bank 1 and 2. my stock h-pipe as 4 cats and passes etest. now im trying to cheat it with the 02 restrictor.
any advice..................................
any advice..................................
