ok so i have a 97 hatchback dx...... it comes with the headers that have the cat really high on them...... and i have a cat-back apexi n1 with 60mm piping...... im wondering how big of a difference ill see if i get headers and a test pipe for my car..... anyone whos had a similar situation that has any good feedback would be appreciated.... thanks a lot

 

Barely noticable on your stock motor, you will be louder, that's about it..

 

^^yep. d's don't respond as well as b's to bolt ons.