if i put a de-cat downpipe on would it make it louder?
08 February 2008, 07:19 PM
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if i put a de-cat downpipe on would it make it louder?
hi i have a 4"system on my sti, iam after puting a de-cat downpipe on but need to know if it will sound louder as its already to loud as it is
anyone no?
anyone no?
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