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Discussion Starter #1 (Edited)
Do it yourself High Flow cats.
I cut out access panels in the cats and removed the 1st honey comb disc.
Then rewelded. I recommend stainless to reweld, otherwise the welds will
rust away quickly. Any welding shop can do in a couple hours. Make sure you
use a ZIP WHEEL to cut the access cover. A cutting torch or plasma will
destroy and clog the half your leaving in. No codes thrown after 2 days
and dyno tuned with Dave at Performance Autowerks.
 

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This mod will do what exactly ?
 

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Discussion Starter #3
We did the same mod on vipers and picked up solid HP on dyno.
This is faster cheaper and will hold up better than most stainless
steel aftermarket converters, that were blowing apart with Nitrous.
We left just enough material to keep the sensor reading happy.
At worst you'll shave off 1lb. lol
 
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