I am wanting a good o2 housing for the Fireball. Any good ideas would be helpfull. And I want the most air flow I can get.
Is a tubular o2 housing the best since I have a header?
Let me know what you guys got. as spring is getting closer by the day.

victoryperformance.com has a large selection of very nice 02 housings, but you'll pay top dollar for them.

so how obnoxiously loud is an open dump tube? anybody got a video of their car running with wastegate dumpin to atmosphere? i'd like to get a rough idea how loud it is before i buy one

I was going to ask the same Q.
But I would have added how will it perform compared to the internal dump? Which would be better?

Theoretically an external dump gives you better control over your boost with less chance to creep because the exhaust gasses coming from the wastegate have a free path to the atmosphere vs. exhaust back-pressure if routed back to the downpipe. However, when the WG opens get ready for some noise. Its loud and its obnoxious, no two ways about it. Just depends on whether that bothers you or not. It certainly doesn't seem to bother me. Of course, I'm generally concentrating too hard on try to keep the damn car from torquing off the road when that WG opens.

I probably wouldn't reccomend one for street use if that's what you're asking. Too many policemen around these days that don't appreciate modified cars.

As for use on the Fireball, since it's a track only vehicle I'd say go for it. They're relatively inexpensive and I can't see why not to.

Hey man I know most of these guys don't like using ebay. But I found a external dump for $75.00.

yea mine will be for street use...
if xian ever gets that short block pulled for me, i'll be running 3 inch exhaust from the o2 back, no cat, just a 3" magnaflow race muffler. i already know the car will be loud and obnoxious like that... just wondering how much worse it would be with the wastegate dump. so i really need to see a video or hear one in person to judge.
so my next question.. i know there will be a difference between routing it back into the exhaust and dumpin to atmosphere, but is it a considerable difference? i just wanna know if its noticeable. i guess it is hard to ask this question since not many people buy two tubular o2 housings just for the purpose of testing. the open dump appeals to me for the fast spool up and its ability to frighten small women & children. but re-routing it also appeals just for the simple fact it will keep the fuzz off my back... although i am sure my exhaust will still get me plenty of attention

i may just buy a couple ss autocrap's and test em...

yea i have seen some guys on dsm talk saying that they havent really had any problems with the ss autocrap o2 housings...

The external dump will not improve spool time. Spool up occurs while the WG is closed. When the WG is closed the dump tube isn't dumping anything. All exhaust is used to spool the turbine and routed through the downpipe. When the appropriate boost is reached the WG opens and dumps excess exhaust energy out the dump tube to keep from overboosting.

I have to disagree with Brett on this one....

Open dumps are perfectly fine for street use... They only get loud if you push the pedal all the way down and give it too her.

Aside from that they are quiet... tool'n around town pass the cops in your unmodded car besides the huge fucking muffler that the ricer you are have....


but let me tell you, once you get on it... sweet jeebies, i think my penis just moved. nothing sounds better.

check out dsmparts.com i just got an evo III o2 for $104, not sure if the sale is still on

I've got a 2g 02 housing I'll sell for 40 shipped.

I got a 1g make offer

well i'd like to run a full 3 inch dp and not have to reduce down to the 2 1/4 for the stock o2 housing... i was considering building my own tubular o2 housing using 3 inch and dumping the wastegate open atmosphere. at the very least i wanna do a 2 1/2.

nate i do know what you're saying about it not helping spool up due to the wastegate being closed.. but i read on a couple sites that the open dump will help spool up once the wastegate closes again cuz the air exiting the wastegate doesnt hit the backpressure of the exhaust. although i am sure i will have very little backpressure on my car.

I have a full 3" o2 housing, if interested.

There are about 3 points I have input on here.

First of all beware of the cheap fabricated O2 housings out there. I'm sure there are good deals here and there but my experienced proved the old 'get-what-you-pay-for' problem. All the material was there for the $110 I paid, but the fitment wasn't quite right and the welds were dubious. I cut it apart, modified it and had Josh reweld the entire thing as if we made it from scratch.

As far as noise, the external dump is way loud when you are at full throttle. Some can live with it and some can't. Like Christian said, you can easily pull away from a cop at a stoplight without making any more noise than the normal aftermarket exhaust if you take it easy. For reference though Spy has heard my external dump at his home in Peoria Heights when I was by my parents near Springbay... ACROSS THE RIVER. It was very cool to hear your own exhaust through your budy's phone about 6-7 seconds after you ran through the gears!

Once I did a WOT 1st gear pull from a stop light about a quarter mile away from a cop in hiding. I even drove normal through the rest of the gears and by his hiding spot, but he heard my 1st gear pull a little too clearly and pulled me over for loud exhaust. No ticket that time though.

Lastly I always felt better seat of the pants performance with the external dump. I don't have any hard proof, but durring the time I was running the 14b as hard as I could, I felt the external dump was worth a 10th or two in the quarter mile. I am currently running an external dump with my GT3052, but I plan to have enough HP to rout it back into the exhaust without much worry of exsessive performance loss. I would rather be stealthy than outspoken...go figure.

open dump or rerouted?
how much?

Rerouted. I don't know what you're interested in at this point in the thread. I'll have to pm you with the price.

Hey Goat, if he don't want it shoot me a PM!