oh and the obx cat is hella cheap....like $25 on ebay. and it has the extra hole for the second 02 sensor on newer civics.

 

are there any online retailers? idk if i can really trust ebay... have you guys had any problems? im just kinda paranoid about that kind of stuff, but if you guys say its all good, maybe ill give it a try

are there any exhaust systems that come with a cat?

 

i buy off ebay alot. you jus gotta be careful, don't buy anything from anyone that isn't in the US, and make sure they got some positive feedback. i suggest only buyers that have PayPal payment options.

You should be fine.

 

 

none that i know of....

 

ok, ive got my selection down to a few. (the skunk2 is too expensive )

-APEXi World Sport 2
-APEXi N1
-GReddy EVO2
-GReddy SP2

Which one out of those would you guys pick? I'm not necessarily going sleeper, id like an exhaust that you can hear. which one do you guys think is the loudest? (using stock cat) which one adds most speed? thanks alot for all you guy's help, i really appreciate it. i just wanna make sure i make the right choice, cause i dont have enough money to fix a mistake lol

 

Apexo world sport with 4-2-1 comptech header sounds awesome. tame at idle aggresive at wide open throttle. but not annoying, actually since i put my header on it made it less burbble sounding real smooth, but noticable. i will try to get you a sound clip if youd like.

 

well, right now all i can afford is a cat back exhaust system and possibly a cat converter, i dont have enough for headers.

 

i understand i just got my header on this past weekend, but i prefer the world sport, n1 will probably get u the most hp but since ur car is naturally aspirated there is very little difference in gain between the world sport and n1. plus the world sport looks nicer and is cheaper

 

http://www.apexr1.com/aphowsex.html
get a high flow cat for under $100 and take it to any exhaust shop and have em weld a flange onto the header to match it up cause chances are, it's not exact.