I have used two different sets of OBX 4-2-1 headers, no fitment issues at all, and there was never any trimming involved. DTN, you are wrong on two counts. We are not smarter than the engineers, at least I am not. If you are smarter than them, go make me a set of GOOD headers that have good flow with a good finish for over $100, chop chop! It aint happening sir. They do their job just right. You can say they weren't test fitted properly, that would be a good battle. OBX does NOT test fit their products. I don't even want to go into my friend with a Mazda 6's problems with OBX. Let's just say he won't be buying OBX ever again. I think at best they might have just the head, and they check if the bolt pattern fits. Not necessarily that the header will clear everything else (power steering fo instance).

Also. Both sets of OBX/SSAutochrome/ebay/shit headers I've gotten sound like garbage. Everyones headers sound like garbage cause they are all the same garbage, unless you get maintecs or another reputable header. To say that everyone has exhaust leaks but you is just dumb. The piping is thin, the finish is shitty, and the headers are mediocre at best, they ALL buzz. Unless you heat wrap them, again, a whole different deal.

Moral of the story? OBX/SSAutochrome/eBay headers are all the same pretty much. OK welds, horrible finish, not a great tone, but who cares. If you are spending close to nothing on them, what do you expect? They give you power and an upgraded engine bay. They look better than stock, but that's not saying much.

 

^^^

The 4-1's actually sound really good. I haven't had any buzz since I installed them, and Socks can vouch for that. So cheap headers can still sound good, it just has a lot to do with the design.

 

socks is vouching for that..

the 4-1 header is the only one that i ever have heard that sounds good. i have personally heard both and held both. the 4-1 is a lot heavier duty that the 4-2-1. i had the 4-1 on my car and the 4-2-1 for a short time. the 4-1 sounded much better. they were both installed with stock catback exhaust, so i had nothing else affecting the sound output from the headers..

also, there are tons of fitment issues lately with obx.. all the listing are for 97-01 but sometimes they send out the 97-99 ones, sometimes they send out 00-01 ones..

we ordered a set of headers for demon fox and he got the ones with shorter downpipe.

the reason the 4-1's sound better is cuz the thicker construction and shorter runners.. the 4-2-1's are thinner steel and have longer runners which results in more vibration, which causes the buzz/ rattle that ALL 4-2-1 owners experience when driving.

 

Just like I said, see, I'm learning! lol

 

I did not say everyone has exhaust leaks. "Alot of people who have "buzzy" exhausts have exhaust leaks. Mine do not buzz."

Try the JDMMotors set. You might like them. I run them with no buzz.

Theres 2 other brands too, one has 2 o2 sensors and one has 1 o2 sensor. I'm not sure on names. You've determined that the OBX suck.

As for the engineer comment. It's a joke among technicians "I'm smarter then the engineer who went to school for years to learn how to do this". It's used to justify modification and missing parts. I had to remove a useless part of the engine brace to make them fit.

 

they are ALL the same thing.. all the same makes.. just different distributors.. ALL the 4-2-1 buzz. you know why..... cuz they are ALL made of the same thin material.. you know WHY they are made of the same material, COST. some people just have a different idea of the 'buzz'.

these headers OBX/XD power/JDM bla bla/ssauto are all thin gauge steel. whether is be stainless, mild, chrome coated, painted, etc.

dtn, you don't SERIOUSLY think JDMmotors is the BRAND of headers that you got, right.. they are just a distributor for whoever makes them which is OBX/XD power or whatever.

the only reason one has 1 o2 and the other has 2 o2s is because one is for rd1 and one is for rd2. the sellers have NO clue which is which. thats why most of the time people get the wrong one shipped to them.

how come people can't just see that ALL the ebay headers are ALL the same.. same material, same welds, same construction.. same MANUFACTURER.. all of the different sellers you buy them from are just that SELLERS (DISTRIBUTORS).

same thing goes when you buy a body kit.. there is no FLYRYDE body kit, or TEAMSR body kit.. they are all IMPORT TRENZ body kits.. so most likely, if you get a zefiro bumper from versus motorsports and teamsr they are going to be the SAME thing.. (just an example.)

 

^^ Actually, JDMMotors are designed for an eclipse/EVO. They're a different header. They're the ones which require modification to the holes and the flange.

 

but the rest of it just bolts up?

if its made for an eslipse then you would need a tiburon downpipe with a eclipse header.. and in the end your gonna have to frankenstein it together?

even so, the eclipse ones are most likely same manufacturer with different flange.. thats how they make these things so cheap.. the only thing they ever have to do differently is the downpipe and the manifold flange.. that way they can mass produce pretty much any 4 cylinder top part of the header, weld a flange on, and call it a day.

so, to get the header you have, you need to buy an eclipse header/dp and tib header/dp and use dp from tib for other one to get it to bolt up.. why would you bother?

 

^^ You'd be suprised how much our cars have in common with the eclipse. The turbo manifold from the EVO fits our cars with the same fitment issues. Eclipse guys take the beta heads to get their DOHC capabilities. The car looks like it was made by the same people. Currently I'm still working on turbocharging my buddy's Eclipse. But yeah, the headers fit. We have a KDM car, the Eclipse is a JDM with nearly the same bolt pattern. Hence JDMMotors. Those are the only differences in the JDMMotors header.

 

ok, but what about the down pipe.. they aren't the same..

i know about the flange thing. but its still probably same EXACT header with the corresponding flange.. thats what im trying to get across here. so what woul dbe purpose in getting the 'jdmmotors' header over any of the other distributors for tib headers.