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      Yesterday, 10:06 PM   #23
X.X.I.V
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Originally Posted by Zoli007 View Post
Wow that sounds really really good. I'd never recognize that as an F80 if someone played it for me. Very nice! You might become rich if you can get this made and sold.
Already in talks with Top Gear Motorworks about it. We'll see how this turns out, but they definitely have earned it. Completely craps on every single friggin exhaust out there.
Wow that sounds awesome I'd love this but my ocd needs the 2 sets of valved exhaust tips so the my wife and kids will still go out in my car
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      Yesterday, 10:14 PM   #24
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Wow that sounds awesome I'd love this but my ocd needs the 2 sets of valved exhaust tips so the my wife and kids will still go out in my car
I'm in talks with Top Gear right now about this. They came up with a brilliantly simple solution with valve operation. I am not committing to doing this on my car, but maybe he'll want to experiment on it. Can't promise anything though. The tone is perfect - just the perfect amount of volume and not pissing anybody off. I couldn't be happier. I see you're local - hit them up. Mitch knows what he's doing now, so I bet he can do this for you.
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      Yesterday, 10:25 PM   #25
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I swear rhat juicy video is making me want to cut up my AWE switch path and try it out.
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      Yesterday, 10:39 PM   #26
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Originally Posted by jboogie315 View Post
I swear rhat juicy video is making me want to cut up my AWE switch path and try it out.
Instead, sell that to fund this project! With the right fabricator, you'll probably break even or close to it.
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      Yesterday, 11:19 PM   #27
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Damn that sounds amazing!!! I would swap out my Akra if they could make a quad tip version. Wish your fabricator was local to me. I canít find anyone around here to do this type of work.
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      Today, 12:11 AM   #28
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Quote:
Originally Posted by ntg44 View Post
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Originally Posted by Zoli007 View Post
Wow that sounds really really good. I'd never recognize that as an F80 if someone played it for me. Very nice! You might become rich if you can get this made and sold.
Already in talks with Top Gear Motorworks about it. We'll see how this turns out, but they definitely have earned it. Completely craps on every single friggin exhaust out there.
Wow sounds great ntg! I may have to run fake tips on the other side to retain the stock look but its a very good sound.

When do you think buys will be available?
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      Today, 03:31 AM   #29
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This is great - subscribed!
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      Today, 04:09 AM   #30
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      Today, 08:11 AM   #31
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Originally Posted by ntg44 View Post
Already in talks with Top Gear Motorworks about it. We'll see how this turns out, but they definitely have earned it. Completely craps on every single friggin exhaust out there.
Do you still have your cats?
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      Today, 08:14 AM   #32
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Originally Posted by spool twice View Post
Do you still have your cats?
Primary cats, yes.

Secondary cats have been replaced with Magnaflow 14156 resonators. If I were to do it again, I'd probably find something a little larger that could fit in the space. The Magnaflows are fine for stock exhaust, but the equal length has a little more snarl in the midrange that maybe larger resonators could fix.

Ideally, I would have liked a resonator after the merge, but with such a quiet muffler, I don't even think it would help. Luckily you can barely hear it in my V2 compared to V1.
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      Today, 08:16 AM   #33
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Originally Posted by jboogie315 View Post
I swear rhat juicy video is making me want to cut up my AWE switch path and try it out.
The switch path is a multi-piece design that uses clamps correct? if so, you can easily just bolt on a new rear pipe section that encompasses that U-bend and cross the pipes after that. That way when it comes time to sell, you can give the buyer the option of the standard AWE or your custom pipes
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      Today, 08:19 AM   #34
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Quote:
Originally Posted by ntg44 View Post
Primary cats, yes.

Secondary cats have been replaced with Magnaflow 14156 resonators. If I were to do it again, I'd probably find something a little larger that could fit in the space. The Magnaflows are fine for stock exhaust, but the equal length has a little more snarl in the midrange that maybe larger resonators could fix.

Ideally, I would have liked a resonator after the merge, but with such a quiet muffler, I don't even think it would help. Luckily you can barely hear it in my V2 compared to V1.
Thanks, comparing mine to yours and to other members, it seems like all of you have eliminated some, if not all, of the cats. I'm going to try and eliminate my secondary cats, I think that's the piece I'm missing.
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      Today, 08:21 AM   #35
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Originally Posted by ntg44 View Post
Well, that was sooner than expected.

VIDEO IS UP! Make sure to listen on YouTube and check the comment section for time stamps. It gets right to the juicy parts.
bye bye old "S55" sounds, hello new era of "S55" sounds
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Last edited by spool twice; Today at 09:49 AM..
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      Today, 08:23 AM   #36
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Originally Posted by spool twice View Post
Thanks, comparing mine to yours and to other members, it seems like all of you have eliminated some, if not all, of the cats. I'm going to try and eliminate my secondary cats, I think that's the piece I'm missing.
Oh, I did not know that you still had them. Yes, you absolutely need to do that. Since you're still using stock muffler, get the Magnaflows.

When I had my valves unplugged 100% stock, I'd get some resonance and rasp under boost. After the Magnaflows, it fixed everything. I think it'll take a little bit off the edge and round out your tone nicely. Although with your latest sound clips, I really like it as-is. Much angrier/dirtier sounding than mine It's a nice alternative.
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      Today, 08:30 AM   #37
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Quote:
Originally Posted by moonshine89 View Post
I don't know much about acoustical engineering but everything you're saying is making an incredible amount of sense. God I hope someone is out there resting the best equal length exhaust system with an mpe setup. I love how throaty my MPE. I can't imagine it being better, but this post makes me think there's room for improvement!
Very basic concepts being applied isn't it? Crazy how this wasn't a topic of discussion back in 2015. Instead, the past conversations were centered around adding resonators, adding x-pipes, eliminating rasp, basically covering up the sound without actually looking into why the S55 sounds the way it does, so they all end up sounding like a variation of the same theme.
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Last edited by spool twice; Today at 09:20 AM..
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      Today, 11:44 AM   #38
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Quote:
Originally Posted by ntg44 View Post
Oh, I did not know that you still had them. Yes, you absolutely need to do that. Since you're still using stock muffler, get the Magnaflows.

When I had my valves unplugged 100% stock, I'd get some resonance and rasp under boost. After the Magnaflows, it fixed everything. I think it'll take a little bit off the edge and round out your tone nicely. Although with your latest sound clips, I really like it as-is. Much angrier/dirtier sounding than mine It's a nice alternative.
What rear muffler are you using on yours? I didnt see it listed in the thread (and was reading the other thread) but perhaps I missed it. Great work on this guys!
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      Today, 11:53 AM   #39
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What rear muffler are you using on yours? I didnt see it listed in the thread (and was reading the other thread) but perhaps I missed it. Great work on this guys!
It's a custom muffler, built by TopGear Motorworks in Downers Grove, IL. If you want one, best just to contact them directly.


Just as an aside to everyone - this seems to be building momentum pretty quickly. I just want to reiterate: I have zero stake in TopGear. I'm just an incredibly satisfied customer that spent my money on this amazing exhaust. Any and all sales/product inquries are best handled directly through them. The last thing I want is to get banned for shouting at the rooftops because I'm a satisfied customer

But if it's anything related to my specific system, happy to answer questions.
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      Today, 12:22 PM   #40
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Are they considering a faux second exit from the muffler? I see a single tip setup being a hang up for a lot of people.
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      Today, 12:49 PM   #41
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Are they considering a faux second exit from the muffler? I see a single tip setup being a hang up for a lot of people.
No planning for any type of production run has been started - thus far, it's been TopGear and me bouncing ideas around in informal, non-committal conversations. Obviously I'm gauging interest here on the forums, but that's it - there's no substance.

I promise this isn't directed at you , but I feel like I'm beating this horse to death (from the old thread), and I apologize in advance to anyone who's read this before, but obviously, yes, a fake 2nd exit could be welded on with no problems. However, right now, with my money on my system, it's not happening. It's the principle mostly. I believe it is dumber to put a non-functional 2nd exit on a clearly single exit design just for looks, especially on an M car of all things, so I'm not going to do it.

Many will disagree, and that's perfectly OK. We don't all want or care about the same things. But to me, a non-functional 2nd exit is even tackier than fake exhaust trim around the newer Audis for example, where you have a black piece of plastic plugging a chrome perimeter. It's just not for me.

That being said, I am brainstorming a second, functional tip with a valve that basically bypasses the muffler. But there are a few things stopping me:

- Budget. Don't really feel like spending any more money on this when it's perfect now.
- It's probably going to sound way too loud, so I'll never use it.
- Desire. I have none. This exhaust sounds so good, not sure I want to figure out how to get a 3.0 inch valve working with the OEM valve motor/controller. Could be easy, could not be, but I am not interested enough to find out.

Like I said in my previous post, at this point, this project is just my car and my exhaust. If you want an exhaust fabbed from TopGear, give them a call! I'd be happy to donate my car for a few days for fab & fitment, but the rest is between you and them. I don't even know if they want to get into the manufacturing and shipping side of things, but that's something you can ask them about.
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      Today, 01:58 PM   #42
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No planning for any type......
Any chance we can get a flyby video of the sound?
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      Today, 02:00 PM   #43
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Any chance we can get a flyby video of the sound?
Sure! Weather is supposed to get a little icy in Chicago pretty soon, so it may not align with my availability to do the recording. I don't have winter tires for this car, since it's not my DD. But I'll try to find a day that I can do this.
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