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Longtube Headers

743 Views 8 Replies 6 Participants Last post by  whitemustang02
Alright so i was talkin to the emissions dude the other day and he said as long as your check engine light isnt on ur basically fine. So does longtube headers set off the check engine light?
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or you can use a tuner and turn off the downstream o2 sensors or you can get M<IL eliminators.
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