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Another member and I were discussing your product offline and on paper it looks very nice and your philosophy sounds good. One thing that would be helpful from our point of view is if you could post some before/after clips of the same car recorded with the same microphones under the same conditions... and not just sitting still, but under load... standing starts and such. I can't find any on your website either. Some other vendors have good examples of this with back-to-back comparisons that allow use to better judge the change in tone reasonably well. Just a suggestion.
Thank you for an additional info you can provide!
Hey, Mike, Marketing Manager here. I 100% agree with you! It's a goal of mine to produce an over abundance of high quality media to allow potential customers to get the best possible idea of what our components may sound like on their car. I'm currently working to get a module installed on our website that will allow us to show off not only our content but that of customers as well. I've spent my entire career in the automotive industry providing customers and companies with content and I always look forward to building relationships with owners and showing off their cars.
We'll be shooting several videos for every component to highlight both exterior and interior sounds in as many driving conditions as possible. Comparisons between factory to aftermarket systems can sometimes be a challenge. The perception of the sound experience can be altered due to auto gain on the camera / mic - with the loudness of free flowing exhausts causing the mic to pull gain to prevent clipping, resulting in a hollow and tinny sound - often an issue on the full catless setups. I'll continue to experiment with different hardware and mic placement to deliver a true comparison as always.
We also plan on working with customers and videographers to get professional videos done all across the world. My email is marketing@soulpp.com if anyone has any media needs or would like to get involved in making media happen.
__________________ SOUL PERFORMANCE PRODUCTS Quality Exhaust Solutions, Fair Pricing, and Outstanding Service
John Gaydos- Owner, Performance Specialist
Cell - (484) 883-6197 johng@soulpp.com
Another member and I were discussing your product offline and on paper it looks very nice and your philosophy sounds good. One thing that would be helpful from our point of view is if you could post some before/after clips of the same car recorded with the same microphones under the same conditions... and not just sitting still, but under load... standing starts and such. I can't find any on your website either. Some other vendors have good examples of this with back-to-back comparisons that allow use to better judge the change in tone reasonably well. Just a suggestion.
I'd be curious as to how you are blocking off the side muffler path since the butterfly seems to have no hookup to the canister where the cutoff would have to be. I would guess there is a valve in the bulged area that opens the pipe to the stock mufflers once back pressure from the "loud" butterfly path increases due to the valve closing. Similarly that valve closes over the side muffler path when there is no back pressure. I understand if you want to keep this a trade secret though.
Thank you for an additional info you can provide!
StormRune,
It was an absolute pleasure speaking with you early and we are happy to see you chose Soul Performance Products for your car. We look forward to seeing and hearing your thoughts!
If anyone else is interested, we have the Valved Exhaust for the 991.1 in stock and ready to ship!
It was an absolute pleasure speaking with you early and we are happy to see you chose Soul Performance Products for your car. We look forward to seeing and hearing your thoughts!
If anyone else is interested, we have the Valved Exhaust for the 991.1 in stock and ready to ship!
Best,
It was very good talking with you too!
It's looking like the exhaust will get here on Thursday so thank you for the quick shipment. It looks like I know what my weekend plans are!
I also plan on capturing some before/after audio/video to share so I'm making plans to borrow a good mike/camera setup for that.
Your product looks really well thought out and manufactured so I decided I'd be willing to be an early adopter and don't have a lot of worries about it.
I love a good project!
Looking forward to the results. When do you anticipate the no CEL headers will be available?
Johnny,
We are currently establishing how to get the fitment perfect on the 991.1 Street Headers. Since we use a larger diameter catalytic converter than the competition, it creates a need for a specific end cap to fit within the size constraints.
At this time I would say that we are still a month away, potentially longer. It seems like most of the market interest has been in the rear exhaust for that car more so than the headers. What do you think? Do you have friends/acquaintances that are seeking out some kind of high flow cat?
I am curious to hear your thoughts.
Originally Posted by StormRune
It was very good talking with you too!
It's looking like the exhaust will get here on Thursday so thank you for the quick shipment. It looks like I know what my weekend plans are!
I also plan on capturing some before/after audio/video to share so I'm making plans to borrow a good mike/camera setup for that.
Your product looks really well thought out and manufactured so I decided I'd be willing to be an early adopter and don't have a lot of worries about it.
I love a good project!
Thanks again StormRune, we are more than happy to collaborate with Rennlist members, at the end of the day it is you guys who are going to ultimately help us rewrite what is expected from an aftermarket exhaust company!
I received the shipment of the Valved Exhaust yesterday (catback style, no headers) and decided to do an unboxing video. I've been collecting enough videos, posting enough forum DIYS, and have enough time these days that I've decided to start a YouTube channel with various videos that people may find interesting. So the first unboxing video for me is for this exhaust. I plan on doing some before and after audio/video before the installation this weekend, but for now I thought I'd go ahead and post the unboxing:
Also, here are some additional stills that show a bit more detail that you see on the vendor's site or in my video.
These are the slash-cut satin tips, the finish is very nice! They appear to be a little larger than the OEM tips.
The vacuum hardware that operates the valves is the best I've personally seen. It looks like it is designed to be replaceable without much trouble on the outside chance that a valve failure occurs.
Another view of the value and the quality of the welds and finish. I had to ask about the finish. That isn't paint. It is a proprietary bead-blast approach. I understand the steel is T304L.
A view inside the lower pipe that feeds the loud outlet with the valve open.
And the valve closed. The seal looks much more complete than I expected.
A look inside the inlet section. If the valve is closed (quiet), then apparently the exhaust moves through the holes in this chamber to the stock side mufflers. However, when open, this design appears to encourage virtually all of the exhaust to move out the short route through the X pipe to the loud outlet. I'll be interested to see what this approach sounds like!
The welds look great! The design of the X section seems to allow the flow to move more directly through the X than many other designs, supporting both a smooth S shape and a C shape to form the X.
The insides of the pipes are very clean. The flanges look nicely flat and reinforced to stay that way.
These mounting straps and clamps are the nicest I've personally seen.
Clamps at the back of the tips.
If you have the PSE button, you won't need the remote switching capability but I requested them just for the sake of my curiosity. But for non-PSE cars this will give you a switchable exhaust. The tubing provides (not shown) appears to be high temperature silicon like you usually see used around the heat of turbos.
Even the key fobs for the switch look first class.
I've put together two videos for the sounds of the exhaust for the 991.1 on my C4S.
I initially recorded the "before" video with a mobile phone mike I got off Amazon but the audio from that broke up badly and couldn't be used. Fortunately, I recorded a second set of audio with just the iPhone 6S mike just in case... since I knew the iPhone mike isn't really all that bad. So the first video is a comparison with both the "before" and "after" videos shot with an iPhone 6S mike. I thought that was the fairest way to do it since I didn't have a better working mike for the "before" part and I didn't want to have different mikes skew the comparison.
While I thought the audio from the iPhone was reasonable, I later decided to go rent a better mike for an improved "after" video. It still doesn't really do the exhaust complete justice, but it should at least give you a good idea that it is a big improvement in not just volume, but in the richness of the sound. The volume of the new exhaust is significantly louder than the PSE, both in soft and loud modes. But for some reason the iPhone mike seems to normalize the two volumes to be more similar than they really are.
In soft mode, I'd place the new sound as much richer... with a volume about halfway between the OEM PSE's soft and loud modes when under 3.5k or so. Don't forget that the valves open in either mode at somewhere approaching 4k. There is more off-throttle burble there too.
With the new exhaust in loud mode, it is quite a bit louder than the original PSE and there is a nice rich raspiness in both acceleration and deceleration. I know I'm more conservative around town that many here, so my thought is that I'll probably use the richer "soft" setting more around neighborhoods now where I used to switch to PSE sooner. It's pretty nice for when you want to be civil but still want a sports car sound. It's probably what the factory PSE should be in soft. Then I'll save the louder mode for when I'm doing more aggressive driving out in the right places and times. There is also a nice raspiness and a "brap" during shifts on the PDK what was barely noticeable before. I don't think the guys are autocross are going to say my car is surprisingly quiet out on the course anymore.
Later I'm planning on do a video about removing the existing PSE (mine was stubborn due to rusted out nuts/bolts from its prior life in the north) and another showing the install of this one. But for now, here are the end results as best as the mikes can show them:
Before/After
Unfortunately there is a brief drop in audio at the shift to third on the Soul Exhaust run, I think the new "brap" that there's during PDK shifts may have caused the iPhone mike to drop for a moment. You can hear it in the second video with the better mike though.
I've put together two videos for the sounds of the exhaust for the 991.1 on my C4S.
I initially recorded the "before" video with a mobile phone mike I got off Amazon but the audio from that broke up badly and couldn't be used. Fortunately, I recorded a second set of audio with just the iPhone 6S mike just in case... since I knew the iPhone mike isn't really all that bad. So the first video is a comparison with both the "before" and "after" videos shot with an iPhone 6S mike. I thought that was the fairest way to do it since I didn't have a better working mike for the "before" part and I didn't want to have different mikes skew the comparison.
While I thought the audio from the iPhone was reasonable, I later decided to go rent a better mike for an improved "after" video. It still doesn't really do the exhaust complete justice, but it should at least give you a good idea that it is a big improvement in not just volume, but in the richness of the sound. The volume of the new exhaust is significantly louder than the PSE, both in soft and loud modes. But for some reason the iPhone mike seems to normalize the two volumes to be more similar than they really are.
In soft mode, I'd place the new sound as much richer... with a volume about halfway between the OEM PSE's soft and loud modes when under 3.5k or so. Don't forget that the valves open in either mode at somewhere approaching 4k. There is more off-throttle burble there too.
With the new exhaust in loud mode, it is quite a bit louder than the original PSE and there is a nice rich raspiness in both acceleration and deceleration. I know I'm more conservative around town that many here, so my thought is that I'll probably use the richer "soft" setting more around neighborhoods now where I used to switch to PSE sooner. It's pretty nice for when you want to be civil but still want a sports car sound. It's probably what the factory PSE should be in soft. Then I'll save the louder mode for when I'm doing more aggressive driving out in the right places and times. There is also a nice raspiness and a "brap" during shifts on the PDK what was barely noticeable before. I don't think the guys are autocross are going to say my car is surprisingly quiet out on the course anymore.
Later I'm planning on do a video about removing the existing PSE (mine was stubborn due to rusted out nuts/bolts from its prior life in the north) and another showing the install of this one. But for now, here are the end results as best as the mikes can show them:
Before/After
Unfortunately there is a brief drop in audio at the shift to third on the Soul Exhaust run, I think the new "brap" that there's during PDK shifts may have caused the iPhone mike to drop for a moment. You can hear it in the second video with the better mike though.
After with a better mike:
Awesome, StormRune!! Sounds amazing
Originally Posted by jto24
Soul, your parts look great and sound good from what I hear so far!
I happen to be local and might actually know one of your colleagues lol keep up the good work!
Thank you for the kind words! Sent you a PM, curious to hear more.. Maybe it's me
I'm sorry if I missed this, but does the soul system weigh less than the PSE components it replaced?
Quoting from the product web page: "Weighs 6 lbs / 2.7 kg less than factory exhaust components (26.45 lbs vs 20.95 lbs, both without clamps)"
On another note: I got the system with the slashed stainless tips. In retrospect this makes complete sense, but the tips are picking up a little bronze coloring effect just like you'd expect from stainless steel exhaust parts. Since I've been running around with the exhaust mostly in sport mode, the bronzing is occurring mostly on the "loud" outlet first. Asking about this, Evan responds that this is expected. He suggests I can hasten a more even color match by heating the tips in the oven, something that could be done before installation I guess. They aren't hard to remove so I might do this. The coloring actually works well with my agate paint though, so I'm okay with it. I figure it is good to know since some may not want this and may want to opt for the dual wall carbon tips.
Here's a photo of what I'm seeing today. It's not drastic but something to be aware of. Of course, I'm been blasting around doing a few too many WOT tests with PSE engaged most of the time so most of the flow has been going out the center tips so your results may vary. It's also hot as blazes at around 100 each day here so that may be contributing.
Oh yeah, one more note! Soul is not kidding when they say their design causes the vast majority of the flow to go straight out the loud outlet when the PSE switch is set to loud. The above post is some evidence of that.
My son and I also did a little test. With PSE on loud and revving the engine, I held a slip of paper over each exhaust tip to watch how strongly the exhaust blew the paper out (an old technique for looking for a failing exhaust valve in the engine). You can tell the vast majority of the flow was coming out the loud outlet. Of interest to the nerd in me, when we came back off throttle there was actually hints of vacuum on the soft (outside) outlet. When you look at their design, I assume this was due to a venturi effect from all of the gas passing along the loud route to the loud tip and passing over the side tubing that flows to the soft outlet... creating a pull on it just like in a carburetor. I'd say their novel design works just as intended! Cool stuff.
06-23-2017, 04:47 PM
