Complete OBX Headers/Y-pipe Installation Writeup
Sorry to bump this thread, but I have some questions.
1) Is the O2 sensor that I pointed to useable? as in a sensor will fit and wont be hitting the engine or anything like that?

2) For the grinding of the engine mount, are we talking about the part thats attached to the engine or the crossmember? It looks like the engine portion. How did you go about doing this? It doesnt look trimmed at all to me, but I dont remember how it looks very well anymore
1) Is the O2 sensor that I pointed to useable? as in a sensor will fit and wont be hitting the engine or anything like that?

2) For the grinding of the engine mount, are we talking about the part thats attached to the engine or the crossmember? It looks like the engine portion. How did you go about doing this? It doesnt look trimmed at all to me, but I dont remember how it looks very well anymore
Sorry to bump this thread, but I have some questions.
1) Is the O2 sensor that I pointed to useable? as in a sensor will fit and wont be hitting the engine or anything like that?

2) For the grinding of the engine mount, are we talking about the part thats attached to the engine or the crossmember? It looks like the engine portion. How did you go about doing this? It doesnt look trimmed at all to me, but I dont remember how it looks very well anymore

1) Is the O2 sensor that I pointed to useable? as in a sensor will fit and wont be hitting the engine or anything like that?

2) For the grinding of the engine mount, are we talking about the part thats attached to the engine or the crossmember? It looks like the engine portion. How did you go about doing this? It doesnt look trimmed at all to me, but I dont remember how it looks very well anymore

Let me know if you find out anything about that sensor bung, is that the one he mentions relocating?
Let me know how your install goes. Im just waiting on the gasket and bung/plug I had to order then I should be ready to go.
Good luck!
well im planning to go the route unclejoe went (use the second bung in the tube for the primary O2) and just plug the one thats a problem. However, if for some reason that one cant be used ill have to get the relocation done so I have room for all my stock O2's and widebands. I should be installing these thursday or friday so ill post what I find
i got my headers installed. but its hitting something at the bottom everytime i go full throttle it makes noise like its shaking the pipe. anybody have this problem. another problem i have with this headers is i hear alot from flex section
how did you setup your o2's?? also, did you grind the mount bracket and cross beam thingy? jack up your car and just push on different parts of the header and see if anything moves when you touch it, you might see what is hitting.
any other OBX installers have a problem with this?
Yeah it's got three(3) possible areas where it can contact something:
1.The rear portion of the crossmember with the collector/flew joint.
2.The rear engine mount and the rear header assembly.
3. The rear O2 sensor that is fitted @ the rack and pinion assembly.
I thought they revised the engineering on all thier recently built OBX header assemblies!
Have someone put the car in gear, emergency brake on , blocked wheels and apply some throttle to induce engine movement in fwd and reverse gears!
Yeah it's got three(3) possible areas where it can contact something:
1.The rear portion of the crossmember with the collector/flew joint.
2.The rear engine mount and the rear header assembly.
3. The rear O2 sensor that is fitted @ the rack and pinion assembly.
I thought they revised the engineering on all thier recently built OBX header assemblies!
Yeah it's got three(3) possible areas where it can contact something:
1.The rear portion of the crossmember with the collector/flew joint.
2.The rear engine mount and the rear header assembly.
3. The rear O2 sensor that is fitted @ the rack and pinion assembly.
I thought they revised the engineering on all thier recently built OBX header assemblies!

so, in the end, it was probably worth saving 350+ from buying cattman, but christ thats a ***** to do. Ended up having to grind on both motor mounts and the crossmember. sounds nice though
actually I was surprised that there wasnt an O2 bung where the pictures showed and that I had to grind the front mount, sounds like im the first to do that
I have a megan catback, test pipe, and TS ecu flash with z33 vtc map which im pretty sure is the reason it sounds just like a z, except a little louder and it pops a bit sometimes since I have a test pipe. ill see about a sound clip
I have a megan catback, test pipe, and TS ecu flash with z33 vtc map which im pretty sure is the reason it sounds just like a z, except a little louder and it pops a bit sometimes since I have a test pipe. ill see about a sound clip
appearently there are some kinda Version3 obx headers... anybody tried em... one guy up in new york seemed to have had a set... piping seems a tad smaller though

i could be lunching but according to everybody else they seem different

i could be lunching but according to everybody else they seem different
the guy I bought mine from said they were a redesign, but from what I found they arent any better fitment-wise, possibly worse (see above)
actually I was surprised that there wasnt an O2 bung where the pictures showed and that I had to grind the front mount, sounds like im the first to do that
I have a megan catback, test pipe, and TS ecu flash with z33 vtc map which im pretty sure is the reason it sounds just like a z, except a little louder and it pops a bit sometimes since I have a test pipe. ill see about a sound clip
I have a megan catback, test pipe, and TS ecu flash with z33 vtc map which im pretty sure is the reason it sounds just like a z, except a little louder and it pops a bit sometimes since I have a test pipe. ill see about a sound clip
Gemner, so where was it located?
Could you provide the seller name so we can keep track of who's selling what?
Thanks
Cmax, if you have nothing to contribute but to knock off OBX headers for the sake of promoting Cattmans, please leave.
Could you provide the seller name so we can keep track of who's selling what?
Thanks
Cmax, if you have nothing to contribute but to knock off OBX headers for the sake of promoting Cattmans, please leave.
I took a closer look at the flex pipe and noticed all of the small holes in it. Not really a problem, just the way it's designed.
The sound actually kind of grew on me. Love the way it sounds after 3500rpm in 3rd gear. Stock catback, btw.
It was the sensor located at B in shady's picture. The seller was dailod and he seemed pretty legit, I think this is just the new design
nice pics shawn. I too had the cat alignment problem, I have had that problem with every peice of a/m exhaust that ive bought, y-pipe, headers, catback, all have the alignment issue. I guess thats what flex sections are for
I may be missing something, but how did you manage to get your car on those ramps like that in the third picture?














