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You can run the stock cats if you want. I have for the last 15,000 miles with my whipple. I think the High flow cats are what fail with a blower. Just go catless when you upgrade to headers.
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2SS/RS, LS3, 6M, IOM w/black hockey, IO interior, sunroof
mods: ******** setup. Whipple supercharger....Need suspension upgrades now... 4" stroker kit, ARH, cam on my wish list.
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