No cat to 100 or 200 cell cat?

[Loges09Impreza]

Hey everyone,

I have my 2.0 Impreza 09, and it has a hotdog muffler, and cat has been removed, and I am tossing up between a 100 or 200 cell. What’s better considering fuel economy and sound?

 

 

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[GeoffLeggy]

In real world I can't see it will make much difference which one.  It will quieten it down a tad probably mainly on idle.  Will both see it through an mot?  My thinking would be the 100 if it will pass you, 200 won't make much difference though so...

[stants]

200cel would give you a more realistic chance of passing an mot/emissions test (if applicable)

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