[anomalous3]

Heads up, looks like Rallitek is welding GESI Gen2 cats into catless invidia downpipes under the Pre racing brand, it looks like they're using a divorced wastegate design instead of a bellmouth. Pricing is pretty competitive, not sure if their reputation is any good, but it does look like another option that might run a lower risk of throwing a code. Note that I'm not associated with rallitek and already have a VSC downpipe so I'm not going to be reviewing this, but it looks like a potentially promising option and it's good to see someone taking a "weld a good catalyst into existing downpipe" approach, since it means we might eventually get some downpipes with an HJS catalyst. (edit - looks like they have a bellmouth option too but it's pricier)

 

[Jay11STI]

Not sure why everyone is trying to re-invent the wheel so to speak lol. For the price of that down pipe, you'd be better off with another brand or the Cobb. The invidia down pipe is great and all but thats about all I would use them for, a catless down pipe.

I am curious to see who will be the first to come out with the HJS catted downpipe. So many companies have invested heavily into the Gesi cats with their downpipes. It would take alot for someone/them to decide to ditch that and go for something else and or better. Gesi cats are all the rage now so to speak, next year they could just a easily be made obsolete and be on the out, "last years news"

Imagine how mad everyone would be 😄

 

[anomalous3]

Main reason not to use the cobb is they’re still using the v1 gesi cats, and grimmspeed has been out of stock so it’s good to have options. I definitely wouldn’t mind an HJS option considering they apparently flow like catless but are even more efficient. I just saw it as a good sign the aftermarket hasn’t totally decided
to wind down and give up on us yet.

 

[killerbmotorsport]

I am curious to see who will be the first to come out with the HJS catted downpipe.

When HJS prices tripled, everyone in the Porsche community switched to GESI except for us. This was done to keep prices from getting out of hand. Our sales went to zero and we stopped making them (our sister company, services the 911 market). Fast forward a few years and the 911 guys are asking if we can make them again, because of CEL issues with the GESI units. We're considering it, but prices are ridiculous. People say they want it, until they see the price.

I definitely wouldn’t mind an HJS option considering they apparently flow like catless but are even more efficient.

But would you pay $2,000 for it?

I don't know if that's what the price would actually end up being, maybe a bit more, but that's the range you're going to be in for a proper HJS cat in an STi downpipe.

 

[anomalous3]

When HJS prices tripled, everyone in the Porsche community switched to GESI except for us. This was done to keep prices from getting out of hand. Our sales went to zero and we stopped making them (our sister company, services the 911 market). Fast forward a few years and the 911 guys are asking if we can make them again, because of CEL issues with the GESI units. We're considering it, but prices are ridiculous. People say they want it, until they see the price.




But would you pay $2,000 for it?

I don't know if that's what the price would actually end up being, maybe a bit more, but that's the range you're going to be in for a proper HJS cat in an STi downpipe.

If it was a foolproof way to avoid a check engine light and the alternative was going back to stock once a year then I would absolutely pay that much for peace of mind. Though at that price I’d probably want to spend the extra to get it ceramic coated to be sure it wouldn’t rust from the salted roads. I remain hopeful that I can pass with my current downpipe but if it turns out there’s only one path to streetable power beyond a certain point, so be it. I’d expect the stock downpipe to be something of a dealbreaker for going with even a slightly larger turbo, for instance.

 

[Jay11STI]

When HJS prices tripled, everyone in the Porsche community switched to GESI except for us. This was done to keep prices from getting out of hand. Our sales went to zero and we stopped making them (our sister company, services the 911 market). Fast forward a few years and the 911 guys are asking if we can make them again, because of CEL issues with the GESI units. We're considering it, but prices are ridiculous. People say they want it, until they see the price.




But would you pay $2,000 for it?

I don't know if that's what the price would actually end up being, maybe a bit more, but that's the range you're going to be in for a proper HJS cat in an STi downpipe.

If the porsche guys flinched, im sure we'd be crying 😂

Although, If it guaranteed absolutely no CEL, minimal power restriction, long life span, and some fancy heat shielding around it to prevent rust and all that stuff....it may be worth it.

Im sure what Im describing is probably well over 2K but it looks like the bmw and audi guys already have options available.

BMW M140i / M240i / 340i / 440i / 540i / 740i HJS Euro 6 Sport Catalytic Converter Downpipe

BMW M140i / M240i / 340i / 440i / 540i / 740i HJS Euro 6 Sport Catalytic Converter Downpipe. Meet the strictest of emissions standards while freeing up power with an HJS 300-cell catalyst downpipe.

www.fabspeed.com

Audi TT RS / RS3 (2.5 Liter) HJS Euro 6 Sport Catalytic Converter Downpipe

Audi TT RS / RS3 HJS Euro 6 Sport Catalytic Converter Downpipe. Meet the strictest of emissions standards while freeing up power with an HJS 200-cell Euro 6 sport catalyst downpipe.

www.fabspeed.com

 

[djoye]

But would you pay $2,000 for it?

I don't know if that's what the price would actually end up being, maybe a bit more, but that's the range you're going to be in for a proper HJS cat in an STi downpipe.

Since it's becoming increasingly difficult to circumvent CELs, people need to come to the realization that an aftermarket 3" performance downpipe, that has a properly-functioning cat, is going to absolutely cost at least as much as a new OEM downpipe section. The days of sub-$1000 downpipes are behind us.

I bought your coated header, I'm already broken in, so a ~$2000 downpipe that won't throw codes and keeps my daily from choking me out is something I'm willing to pay for, especially if it's good for 700BHP.

 

[Jedi03]

Gotta pay to play...an with stricter emissions requirements it's gna hurt the pocket book...

 

[a5m]

Thinking a bit ahead, I guess we should be thankful these options even exist.

Although steep I'd be all for an OEM-like performing aftermarket cat. My Cobb GESi downpipe smells like ****.

 

[Jedi03]

Ya nothing like the exhuast smell of a well tuned car..particularly catless...