Anyone with 4AGE HKS headers, I need a measurement.

[TERRA Operative]

If there's anyone out there with a set of HKS 4-1 headers, I'm just looking for a simple measurement.

I need the length of the primaries from the gasket face to the merge.



These are the headers:





And this is where I need it measured to:

[progkamol]

Does a copy one count???

[TERRA Operative]

As long as the measurement is spot on to the HKS one...

[progkamol]

I had a look on one ... cant measure it exactly as it still on the car and got thermo wrapped around it ... but it appears to be around 36cm (14 inches) long ... again .. its a HKS copy hope that sort of help

[TERRA Operative]

From the head all the way to the merge? It'll be a lot longer than that.......

[progkamol]

confused ... i thought u after the bit from where the weld is to the merge ... my bad ... can't recall where i measured now too after few beers lol ... will have a look again tomorrow

[TERRA Operative]

Nah, I need the measurement from where it bolts to the head (at the gasket), all the way to the red arrow, so I get the entire primary length.
Thanks.

[progkamol]

Now i got it ...

[the_random_hero]

I know it's not the HKS ones, but my set are 28" from flange to merge. 1 5/8 primaries, merge reduces from 2 1/4" to a 1 7/8 venturi.

[TERRA Operative]

How close is that to the HKS ones? I need it within a centimeter or so.....

[the_random_hero]

How close is that to the HKS ones? I need it within a centimeter or so.....

No idea, I've never seen a set of HKS ones.

[knightrous]

What's so special about the HKS ones?

[TERRA Operative]

They're the ones I want to use, and are regarded as one of the best off the shelf options for the 4AGE

[the_random_hero]

They're the ones I want to use, and are regarded as one of the best off the shelf options for the 4AGE

Why do you need to know measurements then, couldn't you just buy a set and fit them?
For what it's worth, there a lot of exhaust places in Australia that could knock you up something that would undoubtedly work just as well for a bit cheaper.

[TERRA Operative]

I want to simulate the engine so I need all the parameters I can get. This is one of the few I don't have yet.