4th Gen OEM 2.2Vtec Exhaust Manifold

Post by **vanzep** » Sun Apr 27, 2025 5:26 pm

Hi all, I am looking for a 4th gen OEM exhaust manifold JDM 2.2vtec
I think ukdm manifold is the same. If it has heat shields that would be a bonus.

TitzonToast · Post by **TitzonToast** » Sun Apr 27, 2025 11:50 pm

I bought a stainless manifold and down pipe a few years ago that were supposedly off a 5th gen, but when I went to have them installed they were off a 4th Gen.
You can have them for what I paid for them if you're interested?

Post by **vanzep** » Mon Apr 28, 2025 3:18 pm

Thanks for the offer

but ideally 4th gen OEM manifold is what im looking for.
I wanted to see if replacing the fujitsubo mani with oem mani would cut down/ stop vibration.
Rest of system is oem inc cat.
Very bad vibration from 3-5k rpm all gears.

Had a very quick look today - not sure but think it could possibly be heatshield or something that is touching the gear shift cables as vibration is running right up the gear stick.
Looks like I will have to drop the whole exhaust and check it over before refitting and also new mani to downpipe gasket as there is a blow.

Post by **Drax** » Mon Apr 28, 2025 3:35 pm

i think i only have a spare aftermarket manifold, not an OEM one but ill try and double check tonight...

Post by **vanzep** » Mon Apr 28, 2025 3:56 pm

Thanks Drax. If you could look for an OEM mani that would be great.
Ive got an aftermarket stnls mani here it does fit to the spare oem downpipe - going to check that it fits as the mani may be a bit taller than oem so would have to check fitment. Height is 55cm or 21 1/2 inches
pic below

stefan · Post by **stefan** » Tue Apr 29, 2025 12:04 am

Is it 5th gen has different one ? I've got oem one but from H22a8 from my old 5th gen

Post by **Drax** » Tue Apr 29, 2025 9:09 am

this is what i found last night, looks to be an oem one? do you want me to measure it up?

Post by **vanzep** » Tue Apr 29, 2025 10:47 am

nice one Drax - that does look like 4th gen mani
can you please measure the distance between studs on either side - centre to centre I need it to be 12cm
if you could also measure max height of the mani top to bottom.
much appreciated

Post by **vanzep** » Tue Apr 29, 2025 10:49 am

Is it 5th gen has different one ? I've got oem one but from H22a8 from my old 5th gen

Thanks Stefan - I already have a 5th gen mani from H22a8 and it doesnt fit the downpipe.

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Tue Apr 29, 2025 1:30 pm

vanzep wrote: ↑
Mon Apr 28, 2025 3:18 pm
.
I wanted to see if replacing the fujitsubo mani with oem mani would cut down/ stop vibration.

Can honestly say I haven’t noticed any vibration from having fitted fuji’s to mine - neither are with an oem exhaust so it’s not a direct comparison, but I’d have thought that would only make it worse anyway? I just don’t get anything at all from the exhaust system.