I had the dual apexi n1's but i want to convert to single so my question is the single apexi exhast come with everything I need or do i need a down pipe and would my down pipe from my dual exhaust work or would the angle be wrong? thx

 

It all depends on were you are getting this kit from. I own both a dual and a single. My dual is a full all the way to mid-pipe and I used another brand DP. The single is just a cat back and I could not use the rest of the parts from the dual because of the "Y" pipe. Just make sure that if you get it you get the full exhaust not just the cat back. And Im 99% sure that you would not have a problem using your DP on a full setup.

 

Do ya eel like selling one?

 

I have the N1 duals, it wouldn't be too tough to go single. You just wouldn't use the Y pipe, and get someone to weld up a pipe to connect to your downpipe.