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hey guys so after reading the headers thread again I didn't notice if you are able to install these 2 cat backs without changing the headers. the greddy sp2 cat back exhaust, or the magna flow cat back exhaust. some people tell me that it bolts on directly without having to change the header, but others have told me i have to get a new header too. which one is right?

 
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If your car is an ex and you buy an ex catback system, you do not need to buy anything else, if you have an lx, dx, vp, etc and you buy an ex catback, then you will need to change your manifold and downpipe and cat to an ex setup. If you were doing this, you might as well buy a header and either a test pipe or a high flow cat both for an ex and do it all at once is probably what people are saying.

 
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^ ding ding.

The thread to the dx/lx to ex exhaust swap is in my sig.

 
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well the one's i was looking at says it will fit the dx cut..... are they wrong? or are they expecting you to have already changed your headers?

 
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I have no idea which one's you are looking at, or what model car you have!!!! If you have an lx or dx and there is a catback for your year, make and model and says "fits dx or lx" then you just need that catback system.

 
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well I have the dx FYI. and i'm looking at these:

http://www.procivic.com/pages-produc...826/index.html

http://www.procivic.com/pages-produc...643/index.html

says they are for the dx model so it should work right?

 
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yes, these systems will bolt right up. FYI!

 
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lol sorry if the FYI sounded mean just lettin ya know lol and sweet i'm glad i wont have to change my headers.

 
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haha... yeah dude. Oh, only one header by the way. Keep in mind that with an ex header you will get better flow then with the dx/lx header which is fairly restrictive.


btw, get an avatar to add some personality to your posts. Like mine is the portland sign.

 
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hmmmmm icic i was looking at a DC sports header but then if I pick up a new header would i have to get an exhaust system that would match the new header?

and yeah I put up an avatar of a civic that I want mine to look like but it didnt work out for some reason.

 
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Just so you know all of what you are asking in this entire thread is covered in the ultimate exhaust faq thread. But what TRIZ is saying is if you want the best result, go with ex setup completely (header for ex, test pipe or downpipe and cat for ex, and then catback system for ex) It will all bolt right up to your dx. However if you don't want to buy a new header, and tp or dp and cat, then just buy the dx/lx catback system. And I was just being smart with the FYI, I'm not mad.