My stainless tip seems to accumulate soot or appears to be running a little rich. I have a wheatley tune and haven't set any codes. It seems to run fine but the tailpipe show that it could be a little too rich. Is everyone else that is running a custom tune have this also? Just wondering if I need a retune??

 

Are you checking it out with a heavy right foot? lol, I bet you've been doing some practice wot's!

 

Put a spark plug on the tailpipe to burn it off
Yeah mine does that when i do WOT runs

 

ahh come on do you really think someone would hammer on it after a performance TUNE!!!!!

yeah mine is like that also...

 

Mines like that too but I keep my foot in it. We did some logging at Charlies and it was dead on so I wouldn't worry too much about it. Even stock mine was full of carbon.

 

I just noticed for the first time lately, that mine blows out a big puff of dark brown smoke at WOT in first gear, where speeds are low enough for the wind to not blow it away. Not like a hot-rod diesel, but pretty much.