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With everything else being stock, I think the stock exhaust (with the cat in place) will probably give you the best torque. And still slightly better without the cat.
You'll lose torque going to TDs. That said, gutting the CAT creates a "less than efficient" collection chamber. Best TQ would be from a 2:1 or the Fuel Moto or Fullsac replacement headers.
+1 on the losing TQ from Tru duals.
Most any 2-1 pipe will give you what you are looking for.
Drago's bikeworks 2-1's are awesome..
They make serious HP & TQ.
You'll lose torque going to TDs. That said, gutting the CAT creates a "less than efficient" collection chamber. Best TQ would be from a 2:1 or the Fuel Moto or Fullsac replacement headers.
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