Toda headers for K20A2, is it cat-less?

[koevi]

Hey guys,

Just wanting to buy Toda Headers for my DC5R but i heard that Toda headers are cat-less? Is this correct?

Thanks

[chargeR]

Yes that is correct. As manufactured by Toda Japan the header is not fitted with a cat. However you can get one fitted without too much hassle, generally along with a flanged donut gasket joint to allow some flexibility because the cat install necessitates the removal of the flex pipe.

[OMG.JAI xD]

Only problem youll encounter is youll have to modify the catback if youre going to add a cat of your own.

[koevi]

ah too much headache lol, any other good headers? know if Spoon headers are any good for K20A?

[OMG.JAI xD]

I think most headers that are effective for the k20a is catless. A cat needs to be fitted on.

And if you dont. Youll have a permanent engine light. Cause it has 2 o2 sensors. 1 for AFR (air fuel ratio) and 1 to tell the ECU if the cat is working or not. Just an emmisions thing.

[koevi]

oh ok, so can an exhaust place do a custom cat fitted? or?

[chargeR]

oh ok, so can an exhaust place do a custom cat fitted? or?

An exhaust shop can do it, but I believe the fellow at Toda Au can sell you a pre-modified Toda manifold with quality metal cat attached. He is a trader on this forum: LINK (http://www.ozhonda.com/forum/showthread.php?61925-TODA-Racing-DC5-road-headers-incl-cat.)

Alternatively Mugen, Maxim Works and possibly Feels make exhaust manifolds with cats included but they are expensive.