Comment: Simple...

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In reply to comment: Except you wont pass emisssions. (see in situ)

Simple...

Simple, remove before test , replace after test. Cars with hydrogen generators make the exhaust so clean that the testers don't believe the co2 levels are correct. They say that there must be a hole in the exhaust system and flunk them. So remove before test, replace after test. Everything in life has a work around. Have you watched political corruption or police corruption lately? They have a work around for everything.

RickStone