Originally Posted by m3jasper
Thanks for the detailed explanation, it's appreciated.
With your primary cat delete calibration, what do you do to compensate for the loss of torque that everyone experiences from 2-3.5k RPM? Are you able to get back the torque that is lost with the cat delete?
We change the angle of the inlet and exhaust cam at where it occurs and you have to add some ignition also but only in that region.
You can use just use huge amounts of preset ignition too and it's fine too. This is the easy way.
Any decent tuner should be able to do this. It's not very difficult.