Unequal Length Header Build B20a/B21a Time Lapse

[@liamchartan9232]

That is truly stunning looking and sounding. The collector being made from a split pipe with wedges welded in was a nice mix of pipe+sheet metal work. Definitely convinced me to make my own uel turbo manifold. Bravo

[@dawsonlo6685]

That’s what I wanna do for my rsx

[@d_kortman]

Man I wish I was knowledgeable enough to do this. I want to make it into a turbo manifold

[@SteampunkDream]

This makes me want to make my own. Unfortunately I don't have a tig welder anymore. I really hope more companies start fabbing up uels for hondas, including uel turbo manifolds.

[@Cerbenix_]

I'd love to hear how it sounds

[@sappk4908]

that's some bad ass welding skills

[@kojironovach.7649]

this is so awesome, can’t wait to install it!! thanks again

[@ahhason]

so how's it sound? this was for you?

[@codysmith3857]

Nice man looks great

[@trevordollinger6569]

What ballpark should I expect to pay to have this service done? It would be for a jeep WK2 with the 3.6 pentastar v6 hehe

[@jhernandez2007]

amazing !!!

[@gerardguglielmo1644]

Very nice work. Do you have a website where you offer products for the 3g?

[@mikhailpetronov2800]

Nice man, looks really good!

[@J27M]

Hey mate the sound is really aggressive and probably moreso than my stock ej20g wrx. I think this is because your headers are designed with a big difference in length, which therefore gives it a more pronounced “rumble” sound. Do you agree with this?

[@christophercastillo7166]

Also, what is the diameter of the flange?

[@killanoa]

what diameter of pipings are used?

[@kallehartikainen3048]

Just wondering. How that is supposed to work properly ? Based on the firing order would it be better to connect 1-->4 and 2-->3 ??

[@Prelude3g]

This isn't a performance design, the buyer wanted a particular sound. So packaging was the primary design concern. This still might make top-end power over the very restrictive North American stock header though.

[@unituscron]

@@Prelude3g so you make to order?

[@Prelude3g]

@@unituscron I can't take on any work at this time.

[@pey321]

@153 what are those kind of dies called to press an circle into a square-ish shape

[@Prelude3g]

I don't know what to call them. I drew them up in cad (several steps from smallest to my desired inner size) then cut them out of 1/4" plate. After that I stacked them, welded around each "step", and finish shaped with a grinder.

[@christophercastillo7166]

Where did you get the flange?

[@Prelude3g]

It was custom cut. You can contact 1funryd about them, or I think Foundry3 Studios could get you one as well.

[@leafaRPD]

How does it sound? Can you please ask the owner to make a video? Thanks

[@Prelude3g]

Here you go: kzbin.info/www/bejne/gGa1eYWXeKh2mZo

[@lijkenkist1]

What a great choice of music! A refreshing experience compared to the million-and-a-half time lapse builds with stupid dance music

[@kallehartikainen3048]

Hi. Because there is not very much aftermarket support for B20A engines and headers. Is there information for pipe diameters for the discontinued DC sports header example ?? Just interested to make my own or taking another honda header and modify it to make it fit for B20A9.

[@Prelude3g]

OBX still makes a header that fits B20a/B21a, it's good for what it costs. I don't know the exact sizes the DC used but eyeballing it they look like 1.5" primary, 1.75" secondary, and 2.25" collector. Tube lengths and routing are close to the stock one.

[@is.joseee6101]

What gauge tube did u use ?

[@Prelude3g]

16 gauge.

[@carlossullivan23]

How much for you to make another one for a 90 lude ?

[@Prelude3g]

Not making any more parts at the moment.

[@carlossullivan23]

Please notify me when you start back I want this type sound

[@dawsonlo6685]

Would you be willing to make one for kseries for the right price ?

[@bowenflob8036]

Amazing top quality work as always. Are those red straps multiple earths? Never seen that before

[@Prelude3g]

Those are just silicone hoses.

[@f.s86_rolla12]

Do you remember what you used to make it?

[@cyberblade6669]

Can I do all this with a scratch start tig

[@Prelude3g]

Yes, but it would not be ideal. I would do lots of practice/tests to get the technique and amps right so you have good penetration. If you are using stainless you will also need to back purge.

[@kingarther547]

That looks awesome are you guys gonna be selling these?

[@Prelude3g]

No, this was just a one-off for someone.

[@MaxOnTwo]

Could I order one of these?

[@Prelude3g]

I'm not selling them.

[@thewilsonlife6258]

If you ever do or start producing them, I’d be interested in buying some for my 89 si.

[@chasesimpson5123]

We need to hang out.

[@jayalvarez1706]

Make me a pair there’s no one selling them . 😢

[@roseliportes4487]

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