finally headers with 4 O2 and cats

[2000SoCalBoxsterS]

That's what I was trying to tell you guys in my first post. If you actually watch the second video that I specified by title you would have seen them point out that the O2 sensor bungs are in OEM locations. Fabspeed makes a great product. As for their customer service follow up that's a whole another story. You are better off calling them than expecting and email response.

[Adam]

Thanks Socal. I didn't watch the second vid which explains a lot more. I took a look at che's 00-04 headers and they don't have a high flow cat or a second set of bungs. Looks like a CEL nightmare. What are we suppossed to do with our second set of 02 sensors Che?

[Cloudsurfer]

Hit the nail on the head. The DME is going to be really pissed off if it doent get a signal from the second set of O2s showing effiicient catalyst performance.

Now, I do wonder if "O2 simulators" could be used for the latter set of O2s to make the DME think all is fine and dandy. A lot of the guys with big power rice burners (Turbo's Zs, Subaru WRXs and STIs, Mitsubishi EVOs, etc) go this route and it seems to work, so I wonder if it could apply here?

Patrick

[2000SoCalBoxsterS]

My 2000 Boxster S has the "warm-up pre-cats" at the headers and then a second set of Cats closer to the muffler. According to FabSpeed the secondary Cats near the muffler are "Deleteable" and when you use their 2ndary Cat by-pass pipes to eliminate them you will have no problem passing emissions inspection and no CEL. I have to call them and ask what you are supposed to do with the O2 sensors and wires that attach to the 2ndary CATs.

[jhandy]

I have deleted the secondary cats without a problem to the O2 sensor on my car, and I believe your as well, has all O2 sendors on the headers before and after the primary cat.

The bypass pipes are cool, neat sound and maybe a little more power.
James

[Joe T]

I have the cat back bypass pipes from fabspeed they are great. No cel at all havn't gone for smog check yet I have a bud that does smogs they turn away most Boxsters cause they cant access the engine so when its smog time visual shouldnt be a prob. The o2 sensors are in the front cats no worries. I would recommend the bypass pipes the exhaust sounds so much better and there is some performance gain at least I can feel a difference.

Next are the headers from fabspeed. I had to have my manifolds welded up already I guess its common for them to crack. Anyway it was alot cheaper to have them welded then get new ones 2500 is alot of bucks.

[Where's my car?]

Hey! guys, im thinking about getting a custom exhaust made for my 2000 boxster, what do you guys think about this idea? thanks