Quote:
Originally Posted by shockin330i
Only thing is, if you delete that cat, there aren't any after that. The n55 on the 335i has no cats or res on the pipes.
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Hmmm, power delivery would be a lot better IMO if the cat was deleted. Imagine that, no more restrictions. May sound better as well. I would take a free-flowing exhaust any day!
However, there might be drawbacks when the cat is deleted:
1) Maybe too loud for some.
2) The cat should be re-installed when it's time for a smog check.