My son installed a pypes x pipe off road version on his 2003 Ford Mustang V6 5 spd that I have now taken possesion of due
to his pending deployment with the Army to Iraq. The car runs terrible with the catalytic converters removed and this exhaust installed.
Is there any tuning that can be done to correct this. Can the computer be reprogrammed to deal with not having the catalytic converters?
Any other ideas? I don't want to put a bunch of money into this.

 

Is there mil eliminators on the car the check engine light will be on if there not on there. They trick your computer into thinking there are still cats on the car