Header

[JDM240SXcoupe]

I'm buying a obx header for my s13 coupe with s14 engine. Well i need to know is this header a 4 2 1 or 4 1 sorry im new to 240s sorry.And is it a good idea to buy it,thanks.
http://cgi.ebay.com/ebaymotors/OBX-Exha ... ccessories

[SX APPEAL]

Its 4-2-1. Definitely good value for money. Noticeable power gain, good quality. I've had mine for 5+ years now. After years of undue stress on the runners due to a badly fitted custom exhaust, it has just now developed a small crack in one of the runner welds. With a proper exhaust it would still be perfect. Biggest issue is the fitment of the egr tube. Unless they've updated the design (which is highly possible) it doesn't line up quite right and takes some persuasion to get it threaded in. Other than that, solid performer.

[breadbox]

I will put forth my experience with after market headers, I have a SOHC and the second bung for wideband on both of mine is exactly parallel to my steering knuckle, making them way closer together then they ever should be, so I've had issues with the knuckle getting caught while trying to turn. You might not have that issue but double check that when installing.

[whyteboi]

i have the same header, fit well for me and could tell a difference......

[Cody240]

Like SX appeal said its 4-2-1 which will improve your performance and acceleration quite well but be careful when installing it and make sure to torque it down correctly because headers like to eat up gaskets and/or crack if improperly installed or torqued. Oh and make sure to check you exhaust hangers trust me you don't want your brand new exhaust flopping around and smack the ground when you go over a speed bump a little to fast (lol personal experience)

[JDM240SXcoupe]

Thanks you so much guys i will be buying it today! since the oem one i have has a leak and the shields are lose so sounds terrible! Now i have to save for an exhaust Now should i use header wrap? or coated with high temp spray then wrap it?

[AZ89two4Tsx]

I would personally spend the money elsewhere unless you're doing a full on NA build. The gains are minimal and the quality/fitment is debated.

[breadbox]

The gains are minimal, but it looks better than stock.

[SX APPEAL]

idk I bought mine basically for looks, not expecting more than a couple horsepower, definitely nothing noticeable. But when I had it installed I definitely noticed a reasonable increase in midrange pull, and like said I wasn't expecting anything so you can't just discount this to a placebo effect. One thing I would say is that id you have a 95 engine in that S13, you're going to need the 95-98 header to match as I believe the EGR hook up is different.

[JDM240SXcoupe]

idk I bought mine basically for looks, not expecting more than a couple horsepower, definitely nothing noticeable. But when I had it installed I definitely noticed a reasonable increase in midrange pull, and like said I wasn't expecting anything so you can't just discount this to a placebo effect. One thing I would say is that id you have a 95 engine in that S13, you're going to need the 95-98 header to match as I believe the EGR hook up is different.

Its has a 97 kouki engine on my 92 coupe. I read that i can fit an s13 header onto s14 one. I dont have an EGR, its blocked all i have its the o2 sensor, the other 2 are welded shot. I cant get an s14 header because it has 2 catalytic right? Anyways i did read somewhere s13 will fit s14 engine.And no im not going NA but its just for while.I can always sell it.And like i said my oem header has a leak,shields are lose s i said if ima take it off might as well put in a new one.

[SX APPEAL]

Well yeah if you've got no EGR then you're stoked, just block off the port and drive it like you stole it

[Ajax]

I will put forth my experience with after market headers, I have a SOHC and the second bung for wideband on both of mine is exactly parallel to my steering knuckle, making them way closer together then they ever should be, so I've had issues with the knuckle getting caught while trying to turn. You might not have that issue but double check that when installing.

I had the exact same problem with my DOHC and OBX. After cutting off and sealing the bung (2 O2 bungs on the header, leads me to believe it may have been for an s14?), it still interfered with turns. Last winter, I finally just hammered the affecting section of pipe until it cleared- no more problems. I'll be designing a custom header this winter because I hate the design of the Hotshot/OBX.

[breadbox]

Also where the header's cat side flange sits was slightly differing between the two. I assume one was designed for stock cat replacement and the other a universal cat/test pipe that has no bend in it.

[Raz007]

I have the OBX header (ceramic coated) on my S14, installed it along with my HKS Hi Power about 6 months ago. Between the two, I did notice notable power gains, but more importantly, it made my car run a lot smoother. Without all that restriction from the stock set-up, I found that low RPM pull was greatly improved. Beforehand, I couldn't shift into 5th before about 50mph or the car would seem to bogg down. Now I can run in 5th at 40mph easily. Great upgrade in my opinion.

[JDM240SXcoupe]

Alright thanks guys i just order my obx header for an s13 n cost me 180 shipped brand new.

[Ajax]

Even with any complaints- 180 shipped for a stainless header is a good deal. Just be aware that there may be a few things that could use some tweaking.