well lets start by saying i have a 1998 civic ex had a d16y8 with a spoon 4-2-1 header and a axle back only megan muffler. I wanted to order a b16a2 in the mean time so i bought some of the new stuff i would need to make it a bit better. I got a Obx high flow cat, the quality of it looks good, The weld quality was fair for it, i broke it in like it said, seems to still work pretty well after 10,000 miles, The exhuast i was impressed with Got one that was modeled after the greddy evo. Weld quality again was alright, has a nice deep tone, not real loud, came with a nice silncer which has like a fin design so its not real quite but not to loud. Then i yanked the d16y8 out and put in a jdm b16a2 from Hmotorsonline that was the cleanest motor i ever seen said had between 45k 60k or something. Basicaly came with everything that i needed, besides a couple little things. So i orderd the Obx header so now i have a full obx exhuast from header back. Bolt up alright wasnt the snuggest header, but i belive that it does leak a little bit, sound wise the header is a little bit loud, its a 4-1 design i belive it to be modeled after the Dc sporrts one looks alot alike. car runs alright with no check engine lights. SoFar everything has over 6kmi and still holds up sounds decent makes some extra power and its cheap, but decent made. 1st hand experience, daily driven car. other mods Under drive pulleys, magnacore 8.5mm wires and aem short ram with blox velocity stack[/IMG]