i have a 97 gsr. when i get the DC 4-1 header, can i use my stock cat? or will i have to get a test pipe or a high flow cat? thanks!

 

you can use whaever you want it just comes down to if you dont get a hi flow cat you gonna lose power becuase there is blockage there but nonetheless u could do it

 

alright cool, i just didnt know if when i buy the header, if it longer then the stock manifold or not. thanks for ur help and i think im gonna get my friend to make me a test pipe!

 

beaware that a test pipe is real raspy...but if u do decide to go that way use thicker pipe

 

Please dont use a test pipe. Spend around $100 and get a carsound cat so we will be able to breathe 15 years from now. The difference between carsound and a test pipe +/- 1whp. Look for the graph on team integra. Use your stock cat or get a carsound if you want more flow [/tree hugger]

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SiR EF8 &raquo;</TD></TR><TR><TD CLASS="quote">alright cool, i just didnt know if when i buy the header, if it longer then the stock manifold or not. thanks for ur help and i think im gonna get my friend to make me a test pipe!</TD></TR></TABLE>

It depends on whether you are talking about the DC ITR 4-1 with 2.5" collector, or the USDM 4-1 with the regular 2 inch collector. If you are going with the ITR style, you will need a new high flow cat or test pipe with a 2.5 inch flange. If you are going with the USDM 4-1, it will bolt right on to the stock cat.

 

alright, thanks everyone for your help. my apexi n1 catback exhaust is on the way. still havent decided if im gonna get a high flow cat ($$$) or get my friend to make me a test pipe (free) thanks for the help guys

 

Hey man, if you decide you want some DC Sports ceramic coated 1 piece 4-2-1 headers please let me know. I have an LS and accidentally bought some for a GSR. Not trying to hijack, just saw an opportunity for both of us to benefit. You could get a nice discount on some brand new headers and I could get some of my money back!
Thanks, -Steven

 

price?

 

Well, Someone is telling me now that they will fit an LS, but I think they are wrong. If someone will verify that they will not fit my car I would sell them to you for say $250? I payed $280 before shipping for them and still have the receipt. I think the total was around $310, but I now know you can find them for a little less than that shipped, so I would accept $250. They are still brand new in the box, opened only to make sure they weren't damaged in transit. I would really like to use them on mine if they will fit, but I don't think they will. Can anyone clarify whether they will or not?

 

They will bolt to the head fine, but will be the wrong length at the collector. If you don't want to modify your cat or piping, you would be best off selling them and buying the correct one.

 

Thanks a lot for the info man. I will sell them if siR is still interested. Just lemme know!