Best option for headers + cats

[0-60motorsports]

Sunbeam told me that they are considering producing the equal length section 1 with cats. So if anyone else wants that, send them a message so that they can see that there is sufficient interest there.

To be honest with their pricing it looks like im just going to save and get the SS Catted section and call it a day.

[Stilt]

Don't disagree, someone stateside should produce them. Similar pipes should sell for like $700

When I was doing my searching, when I found the images of the saclan equal length sec1, I saw posts of some people chopping off one side of the stock sec1 and just welding in a curved piped. Now, that doesn't help, but it just throws the idea out there, that all it would take is to replicate the bends and length, but that is easier said then done.


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[BMWahba]

Seems really overpriced for what it offers. The other thing is that nobody has recorded the exhaust with a high end mic so the true sound is only known in person currently.

Don't disagree, someone stateside should produce them. Similar pipes should sell for like $700

[Gearhead55]

Sunbeam told me that they are considering producing the equal length section 1 with cats. So if anyone else wants that, send them a message so that they can see that there is sufficient interest there.

[EthanolTurbo]

I'm gonna need one of those Sunbeam section 1's ASAP.

Seems really overpriced for what it offers. The other thing is that nobody has recorded the exhaust with a high end mic so the true sound is only known in person currently.

[discoelk]

I think the sound change probably has more do to with equal lengths before the H pipe in section 2. I doubt it makes any more power than stock but who cares, it sounds awesome in those videos.

It also seems like something that would be relatively easy to fabricate if you've built an exhaust before.

[Tbonem3]

Isn't factory already "equal length" if the shorter pipe (bank 2 header) extends farther to the tail pipe due to our large muffler (passenger side tail pipes being farther away than driver side) ?

[BMWahba]

I'm gonna need one of those Sunbeam section 1's ASAP.

[tnord]

the couple vids I was able to find on YT for sunbeam e46m3s sounded pretty good to me. aren't ARH supposed to be equal length also?

[AWE46M3]

Wait, for those who have done twin OEM resonator set up by taking it from another section 1, does that mean it's 'equal' lengths now if you go that route?

Unfortunately, no - OEM section pipes are the same length. If this was the case, the OEM catted section 1 would be considered equal length.

The exaggerated bends/ s-curve on one of the two pipes for the section 1 makes that pipe longer than its counterpart. This makes up for the inequality between the short header and the long header.

The length of the long header paired + the straight section 1 side = the short header + the curved section 1 side

This combo results in headers + section 1 being ‘equal length’ for both sides of the section 1.

For every other headers + section 1 combo, there is still a short side and a long side due to the length difference introduced by the headers (unless you get equal length headers).

[simonnim]

Wait, for those who have done twin OEM resonator set up by taking it from another section 1, does that mean it's 'equal' lengths now if you go that route?

[0-60motorsports]

if you're asking them to sell you the HJS cats, they won't...and if they do, it's pricey. you're better off buying them from europe directly. it's pretty straight forwards, ships quickly, and you get them in 1-2 weeks. i used turboperformance. best price i could find on the cats.

https://www.turboperformance.shop/en/exhaust-technology/downpipes-kats/universalkats/200-cellars/4440/hjs-tuning-catalyst-90-95-0092-61.5mm-up-to-240-hp-up-to-2600-cc

Got it. Doesn't hurt to try since I've been a fabspeed distributor for years and years. If that fails i'll just order from the link you posted.

I contacted HJS directly and they asked me to go through their distributors....so here we are LOL

[MarcoPolo]

Seems like the HJS distributor in the States are Fabspeed now. I emailed them a few days ago but havent heard anything back. Hopefully they reply back soon so I can see if its better/less of a headache to buy the cats to weld in or get a new set of catted pipes from SS.

if you're asking them to sell you the HJS cats, they won't...and if they do, it's pricey. you're better off buying them from europe directly. it's pretty straight forwards, ships quickly, and you get them in 1-2 weeks. i used turboperformance. best price i could find on the cats.

https://www.turboperformance.shop/en/exhaust-technology/downpipes-kats/universalkats/200-cellars/4440/hjs-tuning-catalyst-90-95-0092-61.5mm-up-to-240-hp-up-to-2600-cc

[Stilt]

My friend sent this to me it sounds nice but there wasnt evidence of hp gains.

From there website, not sure what to make of it.
https://sunbeam8.com/2235/


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[George Hill]

I'd be interested to know how the O2 sensors work out on the Sunbeam kit. Traditional knowledge says the tip should never be angled upwards...