Has anyone heard of these guys? I was looking at these.

https://www.topgear-eurosport.com/po...ith-sports-cat

Seems like a good price.

 

Junk, And nobody is getting 25rwhp from just headers.

 

Note that it's also high flow HJS cats.

This product appears to be a cheaper version of the Soul product claiming 25+ hp gains.
https://soulpp.com/product/porsche-9...treet-headers/

I say go for it.

 

I am just curious if anyone else has heard of their quality, I am less concerned about some welded pipes assuming they use quality cats, I would hate for them not to fit.

 

I have Soul headers with sport cats and they're great. Soul as you know, is very reputable. As asellus alluded, these looks Like a knockoff of the Soul. I say spend the extra bucks and get the real thing.

 

For the guys saying they are Soul knockoffs... Cargraphic had that same long tube design since 2013, years before Soul.

 

I would never put HJS high flow cats on my car. Only heavy duty. HF < HD as HF don’t last as long and are more fragile. This is an area of cost cutting. Yes it will make 1/10th of a HP more but if you’re pushing the car the trade off is they will fail much sooner.

Soul headers are not getting 25 hp either.

 

Good video. I can tell you first hand the factory 991 cats are fragile ceramic cats. When I installed aftermarket headers, I looked inside the front O2 hole on my passenger side stock cat and saw a couple chips in the material. I had my drivers side cat warrantied already by Porsche, which they tried to get out of. I have a feeling Sport/Sport+ backfire isn't doing the stock ceramic cats any favors.

https://www.hjs-motorsport.de/produc...ogy-check.html

 

I contacted them about the exhaust tips.... They have full stainless for $250... I want the carbon ones that I have seen Soul, Maxspeed Motorsport, Design Tek etc selling... something tells me they are all the same.

https://www.topgear-eurosport.com/po..._type=exhausts


Regarding the catted headers.. the header flanges look cast which is a good sign... if you guys look in the fine print...

• Video/Sound Clip- Not yet sourced, we can offer a 30% refund on receipt

991.1 headers are pretty easy to install, with the hardest part removing the factory O2 sensors... If they come out easy, the stock headers take about 30-45 minutes to remove. One of my O2 sensors was basically fused in the stock header...

 

I've always found it amazing that cars come with afterfiring tuned in from the factory. Had a friend with a JCW Mini that was ALL about it, and now you've got the kids these days going apesh!t over "crackle tunes" yet no one seems to ever stop and think "hey, maybe creating explosions in your exhaust system might hurt something"

Kudos to you for getting Porsche to replace them under warranty. Spendy bits!

 

It's easy to make a power claim - what's to stop manufacturers from claiming any number they want as most people won't put a microscope to the marketing. We prefer to show third party dyno numbers which show a real world experience that one could likely repeat. Our dyno testing was done by a third party shop, Apex Autowerks. John there is a by the book, straight shooter and experienced track prepper and racer who would not attach his name to anything that did not come out of his calibrated dyno. This particular 991.1 Carrera was tracked very hard and made the perfect test bed for the headers. Your results may vary - you may make more, you may make less, we don't recommend this one chart of this one car be taken as absolute gospel, rather an indicator of a possible outcome. If we get more dyno data we will be happy to display it.

We put a lot of extra effort into our headers which may not be apparent. We're using HJS HD 200 cell catalytic converters which have a stout metal matrix, premium wash coat to catalyze effectively, and brazing stripe to lock the core in place. Our welds are back purged for full penetration and to maximize durability. There are subtle design differences as well such as the length and angle of the end caps for smooth gas flow, the smooth design of the merge collector and internal spike (and the durability of that possible failure point from cracking), and we're using a full flange with no removed material to prevent warping on abuse as we encourage and warranty for track use. As high performance car enthusiasts we've had our share of product failures over the years and we'd rather invest in the extra time and design choices to bolster durability and prevent any chance of downtime with your car, a lost track day, or any other inconvenience related to a failure. Even with all of that in mind, failures can happen with any product and we stand behind our product 100% and will always be here to make you right - and quickly.

My own personal thoughts are that with a lack of dyno chart, product specifics, and video - I'm questioning the results and durability of this alternative. At the end of the day, we understand that cheaper products are appealing and some of the nuances of our product and company are not as important or necessary. We're currently fighting on two fronts - trying to reduce costs to the consumer by intelligently managing our company and how we do business from material purchasing to the efficiency of our team AND also how to improve the quality and quantity of our offerings at the same time. 2021 will yield an expansion of our facility, team, and our technology to achieve this. While the Covid situation has been difficult (for everyone) we're working towards pushing our capabilities every day and we greatly thank anyone who is supporting or considering us as we work with the community to make your cars more enjoyable.

Here is some further reading about HJS HD cats, our finishing process, and weld back purging.

We're always here to chat if you have any questions about your upgrades - we consider ourselves a customer service company that happens to make exhausts.



-Mike

 

It took me multiple trips to two dealers, phone arguments and about two months... they were trying to get me for $2500... Porsche NA blamed my catback... Porsche Huntington claimed I had it gutted at a shop in Queens NY to make it sound better.... IMO it was the backfiring but we will never know. What I do know is I can see small chips on the face of the cat on the still original passenger cat.

 

Oh crap, that was you. I recall the blaming of gutting it story -- "you performance guys do that all the time" or some such.

Way to stick it to 'em.

 

@asellus you might also have interest in a titanium exhaust side project we're working on after hours....



-Mike

 

Fun fun! I moved on from the built turbo BP. Too twitchy at high speeds. Hope to have my LFX in and running this winter.