I'm about to buy some shorty headers and I don't know weather to get the Equal or Unequal and I don't know what one would be better for my stang
. any help would be cool.

because the pressures are different in the tubes of unequals. The flow in the equals is the same in each tube, so there is no "back pressure" or flow hindurances.cb18201 said:yea i never understood how they would make more power if the tubes are longer rather than shorter like the unequal.