4GEN Liberty and Legacy 3.0 Exhaust headers

[Tradewind]

Yes, work on programming the machines to perfectly replicate the original is well under way.

They sent email on Friday saying items to be completed in 10 days. Everything stretches out a bit but we are certainly on the home straight

[SegR]

Any difference in sound likely between the stainless and mild variants?

[Tradewind]

Any difference in sound likely between the stainless and mild variants?

At the back of the car - with standard exhaust - No, not ever, the stock exhaust can muffle anything up front

The sound of the pulses inside the stainless may be slightly more audible due to the metal type itself, or maybe not. Thats the only thing I can think of that may be a touch different

[jay.ritchie]

Hi Tim,

Very interested in a set of the new headers. I've read your previous posts explaining why cats aren't included and also some posts by other members, some who recommend upgrading to 100/200 cell and others who say stock cats are fine. I would plan on removing the 3rd cat.

Also is the stock cat 2 1/2 inch?

Also read that post which argues stock cats VS high flow- i'd lean towards stock cats judging purely on the experience of the member that suggested it (and it saves $500 )
Although there is a bit of difficulty when welding them up to the new 2 to 1 pipe because they have some kind of '2 skin' design. Just by looking at them, they don't look even close to 2.5". Jump under your car and check them out.


Awesome news Tim- so excited for these.

[Tradewind]

Tomorrow they are saying they should have everthing done with first test set of SS headers completed

Will see how they go on this target

[karlos879]

Thanks for the update Tim.
I'm dying to have a set in my hands.....My mechanic is already booked for the first week of October!!
Karl.

[meownerator]

Saweeeet

[RX25SE]

Tomorrow they are saying they should have everthing done with first test set of SS headers completed

Will see how they go on this target

Keen to see the outcome.

[Tradewind]

Pics of first product version

Don't get too excited yet - they have to be inspected for conformity to original design. At this stage I think there could be a serious problem and it remains to be seen if they are prepared to put in the effort to make it like the original.

The results came from a very specific design and a part of that is clearly missing in these images. I have added a picture of Raptor ORIGINALS as well for comparison. Trust the stupid photo loader to put the originals first because it was loaded last.

[jakey]

Tim,

Which bit are you concerned about?

The new ones are clearly quite different in terms of the 3-1, the new ones seem to go in to 1 pipe much earlier compared to the originals which merge together right until the gasket?

[Tradewind]

Tim,

Which bit are you concerned about?

The new ones are clearly quite different in terms of the 3-1, the new ones seem to go in to 1 pipe much earlier compared to the originals which merge together right until the gasket?

The entire area from merge (including it) back to the exit flange. That diameter doesnt work either, exactly like my first test set - zero low end torque

They have been informed to go back to sample and COPY exactly - normally you would expect copying wouldn't be too difficult in Asia right!???

That merge we use is quite particular in its design and it is very labour intensive to make which will be why they are skirting around doing it properly

[SubMeister]

From what I understand of these things when I used to play around with motorcycle exhausts, how the pipes merge together as well as the location of the merge, relative to the length of the primary pipes, are critical for creating an effective scavenging effect, i.e. when one exhaust pulse shoots through, it ideally should help pull the next exhaust pulse through, etc. And this is what allows good headers to let an engine "breathe', and make good power while maintaining or even enhancing torque. I think this is the bit that you are trying to get 100% right, Tim?

[Tradewind]

From what I understand of these things when I used to play around with motorcycle exhausts, how the pipes merge together as well as the location of the merge, relative to the length of the primary pipes, are critical for creating an effective scavenging effect, i.e. when one exhaust pulse shoots through, it ideally should help pull the next exhaust pulse through, etc. And this is what allows good headers to let an engine "breathe', and make good power while maintaining or even enhancing torque. I think this is the bit that you are trying to get 100% right, Tim?

Sub

That's entirely correct, I know exactly what doesn't work, those torque deficient test prototypes are still hanging up in my workshop. It has to be like the current design - EXACT in most areas possible.

It is all important

If they cant/wont do it then I will flat refuse to go down this path and will remain with the mild steel types which are the perfect piece

[RX25SE]

Apart from the entire merge being different, the angle the primary pipes enter the merge collector looks a bit odd compared to the parallel entry of the originals.
What's with the rear primary being stepped to a smaller diameter before the merge collector??

Must be so frustrating Tim.


At least they are shiny.

[meownerator]

Sorry you're having such problems Tim.
They look pretty f*cked.
Looks like i'll be ordering a set of the mild steels. I'll send you an email.
cheers,
Ben