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      11-20-2012, 07:31 AM   #20
AusF20's Avatar
Drives: BMW 125i M sport
Join Date: May 2012
Location: Brisbane

Posts: 775
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Originally Posted by peanut125i View Post
Does anyone know if the performance exhaust for the 125i has any power increase? i want to order one from my local dealer but they have told me they dont know what the difference is if any.
Sound only
You have to replace most of the exhaust system if you want to increase HP
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