I would like to start by saying hello to you all. My name is manny zamora. I am the owner of a 03 srt-4. I bought mine back in feb. I live in the sac, cal area. So far, I have added an atp dp, atp upp, turbo xs mbc, msd wires, haname drop in air filter, home made cold-ram air intake, prototype 3" 02 housing, and my own desighned 3 " mendral bent exhaust.
You are probely thinking, a prototype 02 housing? Well, that is what I would like to explain to you guys, and gals.
SPECS: flanges are laser cut on a CNC machine out of chrome moly. They are .400 thick. The tube, on the prototype-mine, has an inside diameter of 3". I is made for of a high nickle steel, and is .250 thick 1/4". I have placed the 02 senser in the stock location. I will be offering the option of running an extra 02 bung, for air/fuel gauage. It is going to be available in 2 sizes, 3" and 2 1/2. The later being for some of you that feel that a 3" exhaust is going to be to big. And or, do not want to change the down pipe. The stock down pipe entrance hole is 2 1/2".
I have the prototype installed in my car at the present time. The gains are really noticeable. I gained a little more bottom end, but where this thing really sines is, from about 2700rpm, all the way to redline. It also improved my throtle responce quite a bit.
I am going to be putting it on a dyno tomorrow. I will post the numbers as sonn as I get to my comp. I would post pics but, that is where I have some problems. If you want to see some pics, you can send me your e-mail, or go to the srtforums.com and do a search for manny z's 02 housing. This is a chance to really wake up you gt's. When you see the pics, you will be amazed at how small the stock one is.