Hi Flow cat for HS headers?

[fritts]

I was wondering if anyone sells a high flow cat for the HS headers with an O2 bung for an S14. I would like to just lengthen the wire to the O2 sensor.

[Aries]

several companies sell high flow cats with O2 bungs in them.

[fritts]

Do you have sites for them. I know of random tech. but from what I have seen they do not include an o2 bung.

[LiU]

catco and random tech both sell high flow cats, but I believe the catco one is cheaper (at enjukuracing.com). I don't think either of them come w/ 02 bungs but you can drill a hole behind the cat if you want.

[Exar-Kun]

random tech cats should have the sensor bung in them.-chet

[Scott McLellan]

O2 bungs are like $10 and you can buy them from most sites that sell high flow cats. They are simple weld-ins. The only thing that I have against the catco from Enjuku is that it is 2.5" or 2.25" can't remember now and the hotshot you are using has a collector size of 3". This wouldn't be a huge problem or anything but it would still be a small restriction because of the "step". It does have the advantage of being custom fit so it will bolt right in though. Another company I thought of was Dynomax.

[Exar-Kun]

hotshot headers end in a 2.5" pipe and flange.-chet

[Scott McLellan]

okay. sorry for posting incorrect info, but that's just what somebody from Enjuku told me when I asked them specifically about this.

[Exar-Kun]

yeah, the onyl reason I know is because m 80mm/3" test pipe flange was too large for it and it caused a small exhaust leak..-chet

[Scott McLellan]

80mm is actually like 4 mm bigger than 3 inch, but yeah you're probly right. by the way, where do you get gaskets w/ only 2 holes that big? -scotty

[Exar-Kun]

i hate to say it, but NOPI has them...you can ask the guys at heavy throttle, or phase-2..they should be able to get them or tell you where..I had some laying around from my 300ZXs exhaust.

-chet

[Spade]

I just purchase a High flow cat with O2 bung from this seller on EBay. Its a company that sells on Ebay all the time, have had a few friends buy from this guy. Its a weld in Cat but heck, my local muffler guy said 20 bux and its in.

I paid 51.50 shipped for a 2.5" with 1 O2 bung.

http://cgi.ebay.com/ebaymotors...33636