pre-cat removed
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Author:  stevieh6 [ Thu Aug 11, 2011 3:28 pm ]
Post subject:  pre-cat removed

Hi, i have a 2001 3 cyl 993cc swift, this model has a cat right under the exhaust manifold as well as one a bit further down. I've recently removed the first/pre cat and knocked out the internals, then reinstalled.

I was getting 48mpg, i haven't done the calculations yet but my fuel guage is moving alot slower now :)

anyone else done this with similer results?

Author:  sam2007 [ Mon May 07, 2012 1:41 am ]
Post subject:  Re: pre-cat removed

i am shure there are many who have,i have been reading is a popular mod and works,your not going to get many people posting here doing the same reason being its a 2500 dollar fine in a lot of states :vibe:

Author:  stevieh6 [ Mon May 07, 2012 8:18 am ]
Post subject:  Re: pre-cat removed

oh right, well i was only joking, i havent really done it :P

now im getting 48mpg on backroads and 55mpg motorway

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