Hello everyone. I am curious to hear your guys opinions on unequal length headers? What are the hp gains one would expect from them? What are some good brands? I'm not looking for LTH because I just got my ART test pipes and want to keep them for a while. Any input other greatly appreciated! BTW I drive a 2016 base model 6MT 370z and am expecting to have aam short tails with aam s line mid and ypipe with ART test pipes and g3 intakes