I put new rb exhaust on my na, now it smokes bad https://www.nopistons.com/forums/pub...O_DIR#>/11.gif I did not replace the cat, used a presilencer, sound good https://www.nopistons.com/forums/pub...1047683329.gif smokes bad https://www.nopistons.com/forums/pub...O_DIR#>/11.gif so I'm saving my money for a rebuild. Do you suppose if I put the old cat back on it would not smoke so bad? https://www.nopistons.com/forums/pub..._DIR#>/dry.png

What color is the smoke? Does it smell sweet?

Sweet? Like the kinda sweet I'm thinking about? Ahhh...wonderful, sweet smelling smoke.....

if its a blackish smoke its just the unburnt fuel.

sweet like sweet smell of burning coolant.... mmmm nothing like burning motor in the morning

how new is the exhaust and how much idle time have you spent with it? I know my apex'i n1 smoked and gave off a funny smell for awhile on my cibic but this was just like i was cooking some paint or what not from inside the exhaust out.

mmmm mmmm gooooood

airpump?