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Originally Posted by JAM3S
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Looks like you have the regular iPE full setup. I didn't know it is catless
Does your car stink? When I made the switch from F1 x pipe to a custom build iPE x pipe. ( made from iPE ) I felt the torque improved in lower RPM range right away. Perhaps your x pipe performs better than mine? The stink went away when I made the switch. I am thinking to get a stage 2 tune to maximise overall power gain. Which RPM do you set yours to open? Mine is set at 4k RPM. Thanks James