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Old 06-07-2021, 06:34 PM   #14
cmitchell17

 
Drives: 17 2SS, 8L90, Cam, Heads, E85
Join Date: Dec 2016
Location: US
Posts: 1,213
Now that I think about it, if the GESI cats and the stock cats are similar in circular diameter, and if I didn't care about having the supposed stock downpipe bottleneck/restriction then it seems like it shouldn't be too difficult to cut out just the circular section, which it looks like you did, and just cut the circular section out of the GESI cats and weld them back in.
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