Arrow decat with stock exhaust? Was that his setup? If he used upmap then I guess it's the T800 flash adapter.I just installed an ar slip on with an arrow decat on my friends 19 950. He had the Termignoni up map flash adapter and app on his phone. The app had multiple tunes available based on the mods you have. We flashed the correct map for his mods and it is running great.
Can you elaborate on this? As it stands, my ZARD Top Gun Exhaust seems to be working great but I still have my cat present for the time being.Very well. I have it and non-term slips