Its a turbo car, thats what it does. If your remove the cat it will eventually smoke, the fact that it's smoking at an idle it's probably your turbo seals.
1 - 1 of 42 Posts
This is an older thread, you may not receive a response, and could
be reviving an old thread. Please consider creating a new thread.
A forum community dedicated to Mazda 3 and all Mazda vehicle owners and enthusiasts. Come join the discussion about MazdaSpeed performance, modifications, classifieds, troubleshooting, maintenance, and more!