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      02-27-2013, 09:59 AM   #15
THE TECH
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Drives: BPMsport 2012 E92 M3
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Quote:
Originally Posted by Chriskm3 View Post
Deleting secondaries and resonators alters the sound of the exhaust. More agresive sound. I just don't understand why go through all the labour to weld oem cats which are most restrictive and not upgrade to hfc and weld those bad boys instead. Doing that route would provide extra 20 hp easy
+1
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