Thanks! I'm certainly aware of the search function for this problem but as you've shown, the products often become discontinued. Thank you for linking the respective products.
I had a set of Thorley Long Tube headers installed on my '09 GX470 a couple years back. Since then I've been clearing the P0430 and P0420 codes daily. I'm wondering what the latest best option is to avoid throwing these codes every time I reach highway speeds is. I reached out to Burtman (who...