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**Shane@DBPerformance** · 10-16-2005

2.5" to 3" is normal. The stock stuff to a 3" downpipe is usually the same or worse. You don't need a 3" O2 housing, unless your exhaust wheel exducer is bigger than 2.5".

10-16-2005	#11
Shane@DBPerformance formerly ecoli Join Date: Oct 2003 Location: On the dyno Posts: 4,892	Re: Next Mods? 2.5" to 3" is normal. The stock stuff to a 3" downpipe is usually the same or worse. You don't need a 3" O2 housing, unless your exhaust wheel exducer is bigger than 2.5". __________________ www.dbptuning.com