Quote:
Originally Posted by Jeremy5848
Since the trap reduces visible soot only on a cold engine, you can remove the trap and drive the car to the inspection; by the time you get there, the engine will be warm and won't smoke. You will pass.
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It always filters the exhaust. Most places have a 20% opacity limit for diesel emissions, if your car smokes enough to fail/smoke that bad then it has some big problems that need to be fixed anyways. Most 300D/CD/TD/SD cars will test in the 2-8% opacity range when in proper tune.