Does anyone know the piping size of the N1 cat-back for a civic 99-00 EX?. Im looking to get a High flow cat but donot know what size to buy or what to buy it for since i have a B18C swap.

 

I believe its alittle bit bigger than stock (and I know its not 2.5) 2.38 or something like that, not 100% sure though

 

hmm, somone once told me that it was 2.5 but i didnt think it was

 

60mm or 2.36 inches

 

so what high flow cat would i get

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BLK99VTECR &raquo;</TD></TR><TR><TD CLASS="quote">so what high flow cat would i get</TD></TR></TABLE>


Carsound makes a 2.25 inch and 2.5 inch cats. It depends on your plans, 2.5 inch would be perfect for 2.5 in. collector. If your staying with stock header or reg. header like dc sport, then 2.25 in. is good.

BTW: http://store.yahoo.com/exhaust....html

I think it's part # 94165 or 94166 depending on what you want.

 

I dont know if im going for a JDM DC 4-1 OR a regular DC 4-1. What size is the collector on the regular DC 4-1?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BLK99VTECR &raquo;</TD></TR><TR><TD CLASS="quote">I dont know if im going for a JDM DC 4-1 OR a regular DC 4-1. What size is the collector on the regular DC 4-1?</TD></TR></TABLE>


I think same size as stock cat which would be around 2.25inch. I don't know if the jdm dc header bolts up to D series.

 

naw i know that if i get a JDM DC 4-1 you have to get a car sound 2.50. I want to get a car sound cat now on my stock header , but im thinking that since it has to be welded on that it would be a wast when i got a new header unless its easy to cut off.

 

sorry, I just read that u have b18c.