hey everyone, just was wondering high school drags is coming up i was thinking about disconnecting exuast from the headers, they are 4-1 headers i was hoping this idea might give me a better et time also i was going to take the air filter off too would any of these give me more power ? any ideas welcome also its a 4 door GSR !

 

You'd probably make an additional 5hp max.

Not worth it. Keep the filter on.

And if you have an OBD2 car, not having the O2 sensors will cause it to run worse, killing performance.