Header for k24's

FXRob

Well-Known Member
75
72
Riverside
Vehicle Model
Si
Body Style
Coupe
Well I just know that hi-flow cats are usually expensive on their own. So couple that with a downpipe and I am sure it will be costly. Hopefully the gains make it worth while!

High flow cats are not expensive at all, they can be found for well under $100 in universal fitment.
 

webby

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I believe Full Race is getting close to releasing a down pipe/high flow cat. I might get to test fit it on my car!! Couldn't be any more stoked!!
it should cost anymore than $250 unless they incorporate a high flow cat into it (which I doubt).
 

mark magnaan

Well-Known Member
82
6
what is high flow cat? i have a question again. is downpipe a part of a header? pardon my innocence.. just really learning.. i appreciate all the help..

aftermarket headers are not possible for k24?
 

webby

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high flow cat =high flow catalytic converter.


downpipe is essentially the pipe from the head of the engine to where the cat is located.
<---rear of car.... ---- front of car ------>


header - normally looks like this below


---
there are not 4 exhaust ports on the 2012 si. There is only 1 exhaust port on the block. So, you can only use a downpipe - 2nd pic I posted. They can do it with or without a catalytic converter. Hope that helps
 

mark magnaan

Well-Known Member
82
6
it did help a lot sir webby! :) is the downpipe in the photo with cat or catless? with cat is required by law right? thanks!

nice illustrations! you are awesome sir!
 

WhiteFG4

Well-Known Member
534
321
Arizona
Vehicle Model
Civic si
Body Style
Coupe
And I will be a testament to how awesome the full race catted downpipe is!!! It's awesome!!
 

Adrizzzle08

Well-Known Member
205
57
DFW, Tx
Vehicle Model
Civic Si
Body Style
Coupe
I have my own philosophy I go by when it comes to spending money on things... If I'm going to spend money on something I'm going to get the top of the line item. No sense in settling for a lower item and later on regretting not having gotten the best.
 
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