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1,495 Posts
Discussion Starter · #1 ·
My T78 just dynoed at 601 with a 3" cat at 15psi 11.9-1 A/F on pump gas.

The shop is now removing the cat and dynoing to see what the increase is. I'm thinking about 30 HP.

I wish my EVC III wasn't on the fritz so I could dyno at 20psi.
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