headers

[garthog]

i just finnished putting on my headers... never again!!!!!!!! that was the worst thing i ever attempted!!!!! those spring bolts SUCK!!!!!!!!!!!!!!!!!! i thought i could do everything myself... i was wrong! it took 2 of us to put those stupid things! whoever came up with that idea needs to go to hell!!!!!!!!!!!

[terrormaschine]

haha thats totaly sux man... when i got mine in i took a look at them and i just went to a shop .. there was no way i was going to f*** with it by myself, anyway hope thier running great for ya.. got love REVING the hell out of them in underpasses or tunels

[onehotcar]

NO AIR GUN MEANS HARD WORK, SOMETIMES ITS WORTH A FEW BUCKS TO BRING THE CAR IN BUT NOT TO THE DEALERSHIP

[LeGeND42o]

Wow this thread is brought back from the dead, while its here i was wondering if anyone had specific details on installing O2 sensors for a header install. Im in IL and emission testing is required, so with the header install i know my car will fault. Ive been looking online, and i cant find any really good install threads for the sensors or spacers. Im just looking to take the fault out of my dash. Thanks for any comments.

[Darius]

If you go with any other header than the Stillen, you retain the stock rear cat which should probably be enough to pass emissions. Or just keep your stock header around for emissions testing, then swap the aftermarket one back in again. It really isnt' that tough.

Wait, you have a 3.5? Do the stock headers have cats on them like the QR25 header does? If not, then it shouldn't make any difference if you have aftermarket headers installed.

The spacers that people are referring to are old 18mm spark plug anti-fouling spacers for old Fords and stuff like that. If you go to any parts store, they'll know what you're talking about.

[LeGeND42o]

If you go with any other header than the Stillen, you retain the stock rear cat which should probably be enough to pass emissions. Or just keep your stock header around for emissions testing, then swap the aftermarket one back in again. It really isnt' that tough.

Wait, you have a 3.5? Do the stock headers have cats on them like the QR25 header does? If not, then it shouldn't make any difference if you have aftermarket headers installed.

The spacers that people are referring to are old 18mm spark plug anti-fouling spacers for old Fords and stuff like that. If you go to any parts store, they'll know what you're talking about.

Well i was actually going to pick the headers up from Stillen. It seems to be the only reliable brand out right now that i can find. I was thinking OBX, but they discontinued a while ago. But yea Stillen would be my first pick without the down-pipe, sadly only because of emissions. And i do not believe the headers have CATS on them itself, and i know upon installation that it will trip my ECU. But i cannot find any really good sources to remove the O2 trip.

[Darius]

Stillen provides a box that is supposed to trick the ECU into not tripping a CEL, but it doesn't work. I called Stillen and the guy told me that since I didn't buy the header thru them that I couldn't get tech support. Thanks a lot dingles...I won't even mention the shotty collector construction and it is already starting to rust after a year. I could have done better as a beginner welder.

[low91240sx]

get a spacer worked for me

[Darius]

Heh, I have two spacers on there and it still throws a code.

[LeGeND42o]

You put the spacers in between the headers and midpipe right? But what about the O2 sensors, those are drilled directly into the pipe?

[Darius]

I put the spacers between the header and rear O2 sensor.

[onehotcar]

I DONT KNOW ABOUT THE SPACERS, BUT THATS A BAD *** RIDE

[low91240sx]

put the spacer on the very top 02 sensor the one on the header put the spacer into the header then put the 02 sensor into it

[Darius]

I read that you're supposed to put it on the rear O2 sensor since the front one is a wideband and controls the AFRs. ?? I guess it is worth a shot though.

[LeGeND42o]

Alright, im going to try the space the header and throw a sensor on. Do the process of elimination until i get it. Shouldn't take more then a case......i hope.

[Darius]

This weekend I'm going to try to extend the wideband O2 harness so I can put it in the collector as opposed to one single runner. Could be part of the problem also.

[LeGeND42o]

Let me know how that works out for you Darius, i wont be able to to work on my ride this weekend so it gives me some time. If it does work, can you grab a picture if you get the chance?

[showtimesaltima]

dam i just paid a grip to past my inspection . so far i have the nismo cainext mods ( tell me if this is really going to help) next mods: Borla exhaust Stillen Headers Stillen Down PipeHow much gain of hp im looking at . please let me know thanks

[Darius]

10 hp. 15 tops. Crappy results for spending a grand eh?

[showtimesaltima]

i know horsepower cost $$$$ and once to start you have to continue in order for everything to work

[Darius]

You can always go the quick and dirty route and get a nitrous system. Installed and tuned properly (SAFC-II) for another $1000 and you could have a fairly fast car on your hands.