Anyone here with HPF Gen II and catless downpipes?
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07-19-2012, 07:30 PM
Drives: 2008 e92 335i 6MT
Join Date: Apr 2011
i just got downpipes installed, and love the sound.. definitely got louder.
but i want more ... is the change from stock to catless downpipes just as big as the change from catless downpipes to fully catless (HPF)?
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