I just purchased an Apexi N1 catback for my 98 EX. Could someone make me a DIY install for this exhaust.?

 

nobody can make you a DIY on the spot. that would require them to go out and buy the exhaust if they don't have it already, pull of their current exhaust, and then put the new one up which they didn't even have to do. what do you need help with? it's a simple bolt on. that's why people buy catbacks. pull of the old one, put on the new one easy. the only hard part is getting of the old, often rusted, bolts, which you'll just have to be creative. PB Blaster/WD-40/Dremel/Impact Wrench are all good ideas....

 

I have the same catback and it's pretty simple to install, just remove your old exhaust and put in the new one, it bolts straight forward.

Like my05civic said, the hardest part might be getting some of the old rusted bolts out, but with some elbow grease they should eventually come out[&:]

 

undo the bolts holding it to the cat, undo the hangers, hope it does not hit you in the head, slide out from under car, install new exhaust reverse of removal