Picking up a jun 421 header, anybody know what size cat i need to bolt right up to tanabe rm.

thanks

 

what car is it for? what motor do you have also what year motor?

 

oh sorry.. it is a 96 GSR with a B18c... thanks

 

what size collector is on the Jun header? And what size piping is your exhaust. This should be the factors that help you decide what size cat you need....

 

well if you get a high flow get or either a test pie it well be 13 to 14 inches because your year integra which is 96 the header's are made a bit longer..... Not really sure But I'm thinking it's 13 inches.......

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chero112 &raquo;</TD></TR><TR><TD CLASS="quote">well if you get a high flow get or either a test pie it well be 13 to 14 inches because your year integra which is 96 the header's are made a bit longer..... Not really sure But I'm thinking it's 13 inches.......</TD></TR></TABLE>

I was actually referring to piping diameter. But since we're on this length subject, if the jun header is made for a 94-99 USDM GSR, you'll need the stock length cat. The diameter of the cat inlet & outlet will depend on your piping diameters of your header collector and cat-back. I would advise you to keep your piping the same size or step up as you go back. Remember that cats are measured in inner diameter while the collector and cat-backs are measured in outer diameter.

 

if u want i got a high flow cat for sale just im me when u get this LiLMaN21369 and well talk

 

should be 2.5" OD with that setup