i just fixed 2 of my lines on my omp and i have noticed smoke when i start my car. also it might be something i noticed just because of just fixing that problem. so if its not cause of that what could it be. i have not cats just straight pipe with a dynomax muffler. (works great nice sound). so what could cause it. my motor has only 40k tops. i do run it hard. also my wires might need to be replaced anyone know a good brand. and how often to change plugs. i do it like once a year.

 

its a 87 na s4

 

What color of smoke? Blue, white or black? Plugs need to be changed every 20k approx...Well, thats what I always did.

 

idk.grey

 

usually when i start its bad but that is it. sometimes maybe black when it backfires. but i have never seen it.