I am not sure with a Turbo how they will do but with many FI situations people have had there cats start to collapse there is sever threads about that on here, however others will argue this will not happen with the appropriate tune. I had the jba on my car with long tube on a maggie set up but got rid of them just to keep from worrying.
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2011 2SS,fti th400, ECS 1500, Flex Fuel, Boost built 376, squash fuel system
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