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      01-28-2013, 01:54 PM   #5
Dackelone
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Drives: 135i Silber mit/Rot 6MT N54
Join Date: Feb 2010
Location: Bayern, Germany

Posts: 15,744
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Quote:
Originally Posted by Greenkirby21 View Post
great DIY and information as always dack.

I have a question. Whats the difference between this and getting a muffler shop to just cut out the secondary cats and put a small tube in their place?
No difference really. But I did not want to touch the OE N54 mid pipe. That sucker sells for something like $2,300!!!! And what would happen IF you ever needed to pass a visual state emission inspection? Thats why I bought the N55 mids.

I think its better to just buy the N55 mid pipe. Its made so well and you will have ZERO fitment or quality issues with it. It was a no brainer for me.
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