Thread: 135i Turbo Engine (N54 / N55) *General Questions Thread*
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      08-08-2013, 08:27 AM   #932
Tiny Chainsaw
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Drives: 135i
Join Date: Jul 2013
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Noob question-

What does the n54 135i engine's exhaust compose of?

A mid pipe, down pipe and catback exhaust? Or what is it?
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