Espincivic

Hello guys well here we goooo

o just get a new cheap headers (yeah I know but wait)
for no reason I just bought it.

description more HP, shiny and more shiny

installed fit good but guess what exhaust leak between the dowpipe and catalytic won't fit properly yes came with the donut gasket, and rattle very annoying every red light, no brakets like my oem. Any way before I throw this away, any solution for this.

if not I wonder what kind of donut gasket I need for my OEM header part number? Hope you guys can help. I Learn the lesson don't buy cheap stuff hahah well sometimes.

civic402lx

Try using the OEM gasket. Assuming it fit.
also, our 4 cyl eco box only have 1 header. Not header"s"..

Espincivic

Do you know the part #

civic402lx

Go to hondapartsnow.com or Honda parts unlimited and plug in your car info. It will pop up under exhaust.

09chaplak

What kind of header did you get? Oh yea, a cheap one......

TomCat39

Also, don't tighten the spring nuts down all the way like that. They are supposed to spring and you have the springs binding.

You need the proper bolt for the spring nut, it keeps the required space so the springs act as springs.

tony_2018

those are just bolts from a hardware store, if those were the oem ones they would stop at a certain length.

Espincivic

tomcat39 yeah i will try using clamps before tight the nuts i just use the hardware came with the header bolts nuts gasket etc ....... yeah its a cheap header like $45 free shipping super cheap””” thanks civic402lx i found the part

Honda Part No.: 18229-S01-X11

Gasket, Flexible EX. (51mm Id.- 64mm Od.)

i try to keep the aftermarket header if doesn’t work well i put the stock one back i will keep you guys update

crazyhorse2011

Did you have any difficulty installing those headers? I just purchased a full exhaust kit so i suppose the alignment issue you're facing isn't something ill be dealing with seeing how the CAT will be in the trash can when i am finished.

Espincivic

not at all just that annoying gap between the cat and the down pipe.... yeah well I got the axel back I think I make a mistake well be more easy and CHEAP bought the whole kit but o well. Keep post I want to see how it's sound

crazyhorse2011

Hey op post up a sound clip, like a 2 step or a vtec run

TomCat39

Because you cinched down the springs for the flex gasket you have bent the flange.

It's no longer flat and level and makes contact to the other flange.

That is going to cause you problems even though you fixed the springs by using the proper bolts.

Espincivic

that at one was for the axle back muffler was really bad leak.

I will try one of this days fix the cat downpipe later with the same donut gasket but this time I will use some clamps. Will see if not I'm about to take to the shop and welded or put the oem header back any suggestions?

Espincivic

Well guys the gasket it's here so here is my cuestion is can i use this gasket with the aftermarket header? worth it? or just put back my OEM header

civic402lx

Y don't u just go slap it on there and see if it work?
​​​​​

TomCat39

I was going to say, you have to measure and see. You can't assume a stock part is going to fit an aftermarket part.

It took me about 4 tries to find the correct flex gasket for my aftermarket header. But once I did, I was golden.

Espincivic

4 tries ? Wow. Man. I'm asking because this little gasket cost me $20 OEM, aftermarket I know it's cheap. I will measure before put this one in there