First off, this is a good site, I thank all the users for lots of great info I've used on some cosmetic mods.

Down to business. I have a 94 LX - D16B7, I believe. My friend gave me the piping for an SRI, but I don't know what diameter filter or couplers I need. Any advice for someone new to performance mods?

 

I'm not positive that this is the exact size, but it should be pretty close:

http://www.boostcontroller.com/index...;PHPSESSID=0da

 

^^no.

the piping sizes vary. measure the diameter with a tape measurer and whichever 1/4" that diameter is closest to is the diameter filter and couplers you need. the throttle body will need a 2.5" coupler. so if the piping is bigger than 2.5", you'll need a coupler that goes from that diameter on one side to 2.5" on the other side.

 

and btw, it's a D15B7