So i bought these marvellous KSP headers. They come with extensions and repositioned lambda sensors, all fine. But they wont fit NA2 !
I documented everything with photos so everyone can see the issue. I am currently in communication with Toda so they can fabricate specific cats for me...
So in order - that's the OEM front header:
The lambda mounts directly on it, we'll have to replace that.
Front headers compared:
Rear headers compared:
That's the OEM rear header sensor location, has to be replaced too:
Notice how the new headers provide a sensor location on extensions, here is the rear one mounted:
It fits (just barely) so we can work with this location.
That, is the issue (front header):
The cat is way too long. Even if i remove the extension (and lose the front lambda mount point by doing so) it's still quite too long.
Also the front header extension has a bend that the cat will have to replicate (i have photos below)
That's a view of the front cat location:
And both cat locations (again with headers extensions on):
That's the bend of front header extension:
Read header measurements:
Front header measurement:
Rear header extension:
notice how it has a 2-hole to 3-hole adapter on, i can remove that too if we keep the extension.
Front header extension:
That's the bend we have to replicate.
The best option would be to replace the extensions altogether, and have the cats run directly from the header to exhaust without these multiple adapters.
That would mean replicating the bend in the front header extension, and placing the lambda sensors in a same way (we test fitted them, they are ok).
2nd option would be to keep the extensions, maybe remove the 3-hole adapter from rear extension, and fit the cats in between. They'll be much shorter though.
basically the above is what i sent to Toda. Fingers crossed.
I documented everything with photos so everyone can see the issue. I am currently in communication with Toda so they can fabricate specific cats for me...
So in order - that's the OEM front header:
The lambda mounts directly on it, we'll have to replace that.
Front headers compared:
Rear headers compared:
That's the OEM rear header sensor location, has to be replaced too:
Notice how the new headers provide a sensor location on extensions, here is the rear one mounted:
It fits (just barely) so we can work with this location.
That, is the issue (front header):
The cat is way too long. Even if i remove the extension (and lose the front lambda mount point by doing so) it's still quite too long.
Also the front header extension has a bend that the cat will have to replicate (i have photos below)
That's a view of the front cat location:
And both cat locations (again with headers extensions on):
That's the bend of front header extension:
Read header measurements:
Front header measurement:
Rear header extension:
notice how it has a 2-hole to 3-hole adapter on, i can remove that too if we keep the extension.
Front header extension:
That's the bend we have to replicate.
The best option would be to replace the extensions altogether, and have the cats run directly from the header to exhaust without these multiple adapters.
That would mean replicating the bend in the front header extension, and placing the lambda sensors in a same way (we test fitted them, they are ok).
2nd option would be to keep the extensions, maybe remove the 3-hole adapter from rear extension, and fit the cats in between. They'll be much shorter though.
basically the above is what i sent to Toda. Fingers crossed.
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