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Cone Junky »
https://forums.nicoclub.com/cone-junky-u86859.html
Wed Oct 15, 2008 7:48 am
Depends on what emissions equipment you remove, but most will do nothing to improve performance. Things like the EGR only work when cruising, so any acceleration or full throttle inputs would keep it from actuating anyway.
On the other hand, I am removing multiple emmissions equipment on my track car to minimize clutter under the hood. I am also assuming by removing the the swirl control system completely it should increase intake plenum airflow. But that's just an assumption with no data to support it