I have a 98 Civic Dx.. Greddy has headers 92-98 Ex but i was wondering if that same header would work my 98 Dx... Same thing with the exhuast... Greddy has exhuast systems for 92-00 EX,SI i'm pretty sure the cat back will bolt right on to my DX right? but i've heard people say different getting all **** because just because Greddy has part#'s for the EX and SI that it wont fit my DX... i came on here to get comfirmation if anyone knows about this...

But i really want to know if basically all 98 EX headers bolt right on perfect to a 98 DX.. any help would be greatful

 

Seems like you need some knowledge.

To answer your question, yes the EX header will work on your DX engine. However, you need to extend the secondary O2 sensor to relocate it under the car and you also will need a EX cat-back exhaust. Since your catalytic converter will be relocated as well.

 

so basicly if i get a ex headers, cat, and a cat back exhuast everything will fit with problem.. other then extended the 02 senor?

 

are the exhaust ports smaller on the dx motor then compared to the ex vtec exhaust ports.. bolt holes also match up right? Well if everything bolts on perfect then there shouldn't be a problem right?

 

No problems read the link in my sig.....it's got a lot of information for people just learning about the D series engines.