so i installed my headers in my 98 tib bought off ebay, it took 3 hours. the flane which connects to the flex pipe had to be cut and welded as one piece cuz it didnt clear the motor, they look good but like other ppl say have a buzzing noise , i still got to put my o2 sensors in so we will see how it goes, at least you can sell your catalytic converter to make you money back

 

if you run NA without a cat, its going to sound like absolute sh*t, and you aren't going to gain any power from doing so, unless your cat needs replaced anyway.

 

always have a cat. in this case, the best spot for it is in the midpipe after the flexpipe. have the longest glasspack you can find welded to the back of the cat and a good muffler. it'll make it sound better.