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1. Yes this is the exhaust from engine out the back, headers, mid-pipe, mufflers.
2. There are no cats. The ROW (rest of world) tune does not monitor the second set of O2 sensors, so no CEL. I just unplugged the post cat O2 sensors.
3. The dyno was three pulls for $85.
The engine is 3.2 displacement but was massaged where ever it was thought that engine reliability could be improved. A LN IMS was installed. I was told the intake and exhaust ports were worked on, and oil passages were polished for return flow. It was assembled as close to blueprinted as possible.
4. The ROW tune resets the DME (engine computer) the the specs in the rest of the world, IE not the US and its stricter emission controls. It is supposed to give a few more HP/TQ. I am sure someone else on the forum could give you a more exact description of the parameters that are changed.
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