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Discussion Starter · #1 ·
I apologise if my question has already been answered, but if it has I can not find it in the search facility.

Anyway, I have pretty much decided to install the Borla cat back system on my CS but am a little confused as their web site lists 2 versions. One is described as "Race" with 4" tips and the other "Enduro" with 3.5" tips. Is there a significant difference between the 2 systems apart form the size of the tips?

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