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Discussion Starter · #1 ·
has any one gutted thier stock mufflers entirely? i mean completely empty?   performance + or  - ?
thanx
 

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ppridgen1 said:
would sound different but your still going thru the set valve and the a catalytic converter before they get there !
Perry, as I've yet to buy the service manual, and I'm too lazy to look it up :D Do all the 109's have a Cat or just the Cali ones in the US?
 

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DaltonH said:
Perry, as I've yet to buy the service manual, and I'm too lazy to look it up :D Do all the 109's have a Cat or just the Cali ones in the US?
Dalton as Perry stated they all have cats, only the UK/EURO/AUSSIE models have o2 sensors plumbed into the two head pipes. :bigthumbsup:
 
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