shorly cat back does not affect the lights, no where near is it ??Just about to drive mine home quite excitedtho there is a problem if u have Xenons cus the auto ajuster is in the way when they fit the new exhaust, Miltek have been told bout the problem nd have a car booked in to develop a way of getting round this prob because as of now my car has no adjusting headlights till they solve this issue
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