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914World.com _ 914World Garage _ 914-4 2.0 stainless muffler.. 1st production unit
Posted by: mb911 Aug 8 2019, 08:24 AM
Here is the 1st 914 2.0 muffler for @http://www.914world.com/bbs2/index.php?showuser=22428 .. It turned out really nice .. I hope this product will be well received as we took along time to develop this based off of the 914-6 muffler factory design and implemented allot of those principles to the 2.0 muffler. Rumor has it may do a group buy or special pricing for okteenerfest
Posted by: sb914 Aug 8 2019, 08:38 AM
It’s beautiful!
Posted by: Superhawk996 Aug 8 2019, 08:48 AM
Wait till I polish that baby someday!
Posted by: ValcoOscar Aug 8 2019, 08:55 AM
I can see this being a big seller for you Ben.
Congrats!!!
Bellissimo
Oscar
Posted by: Mblizzard Aug 8 2019, 09:12 AM
Great work Ben!
Check out the "rumor" on the group buy http://www.914world.com/bbs2/index.php?s=&showtopic=336859&view=findpost&p=2734822!
Posted by: 914werke Aug 8 2019, 10:15 AM
Looks FANTASTIC. Now we need an audio clip of its sound!
Posted by: Superhawk996 Aug 8 2019, 10:33 AM
That will be a problem. My engine is in pieces at the moment and so is the chassis.
At the moment I’m cash flowing parts in anticipation of a complete vehicle 
That way I avoid a huge cash outflow, lump sum, at final assembly and/or lead time issues.
Posted by: mb911 Aug 8 2019, 11:09 AM
I totally understand that and I would be there is a huge group of people just in the same situation as you.
Posted by: 914Sixer Aug 8 2019, 11:15 AM
Looks better made than a Dansk. 
Posted by: mb911 Aug 8 2019, 11:52 AM
Thanks Mark they are all stainless(304) and hand TIG welded.
Posted by: bbrock Aug 8 2019, 12:21 PM
That will be a problem. My engine is in pieces at the moment and so is the chassis.
At the moment I’m cash flowing parts in anticipation of a complete vehicle
That way I avoid a huge cash outflow, lump sum, at final assembly and/or lead time issues.
I think we need to find someone with a well sorted engine nearby who can bolt this on long enough to get a sound clip. I'm really interested in these but am in the camp who wants to hear it. I'm also curious if it is practical to tweak the guts of these things to adjust the sound up or down to buyer's taste. I know nothing about muffler design and just asking that question probably makes it obvious.
Posted by: mb911 Aug 8 2019, 12:29 PM
I am good with someone testing it but am not down for tweaking each unit for sound levels.. One thing I have learned is that when you sell a la carte you open your self up to a huge confusing mess.. Rewind 3 years ago when I offered the 914-6 heat exchangers up for the 1st time I offered with or without o2 bungs.. People were sending o2 bungs with all different location requests and trust me nothing was standard.. It really gets balled up fast.
Posted by: Superhawk996 Aug 8 2019, 12:32 PM
I’m totally fine if Ben wants to bolt up and get a sound clip or would work it out if there is a volunteer in Detroit area
Posted by: bbrock Aug 8 2019, 12:38 PM
I am good with someone testing it but am not down for tweaking each unit for sound levels.. One thing I have learned is that when you sell a la carte you open your self up to a huge confusing mess.. Rewind 3 years ago when I offered the 914-6 heat exchangers up for the 1st time I offered with or without o2 bungs.. People were sending o2 bungs with all different location requests and trust me nothing was standard.. It really gets balled up fast.
Fair enough and totally understandable. I was more thinking along the lines of offering a couple version for sound rather than custom tweaks. Even with that, I have no idea what it would entail in additional R&D and production costs, so you can just ignore my ignorance or give me one of these
. In reality, I'm probably the only person on the forum who wants a muffler as quiet as I'd like so will settle for as quiet as I can get. 
Posted by: Superhawk996 Aug 8 2019, 12:46 PM
Honestly I bought without need to hear based solely on the quality of Ben’s work and the fact that there any really any viable alternatives done this well in stainless.
I also don’t mind loud nor do I mind quiet. Per Ben’s note, the ability to tweak could drive you crazy. I know we’ll how much work goes into an OEM exhaust to meet pass by noise regulations and to simultaneously tune character. Ben doesn’t have that kind of time or resources and I accept that reality.
Posted by: mb911 Aug 8 2019, 02:52 PM
Superhawk it says you should have it by Saturday..
Posted by: dr914@autoatlanta.com Aug 8 2019, 03:09 PM
ben by chance did you do any dyno testing on your muffler vs the stock 2.0, and maybe even bursch?
Posted by: ctc911ctc Aug 9 2019, 08:33 AM
Very interested !
Posted by: flipb Aug 9 2019, 09:22 AM
Count me as interested as well.
Running 2056cc with 40mm carbs and the rusty Monza/Manta that came with my car. I'd volunteer as tribute if you want to ship the next production unit to VA for me to record a sound clip. 
Posted by: mb911 Aug 9 2019, 09:41 AM
ben by chance did you do any dyno testing on your muffler vs the stock 2.0, and maybe even bursch?
Jake Raby just did with my 912e muffler with the same internals and he messaged me with positive results.
Posted by: mb911 Aug 9 2019, 10:02 AM
I am good with someone testing it but am not down for tweaking each unit for sound levels.. One thing I have learned is that when you sell a la carte you open your self up to a huge confusing mess.. Rewind 3 years ago when I offered the 914-6 heat exchangers up for the 1st time I offered with or without o2 bungs.. People were sending o2 bungs with all different location requests and trust me nothing was standard.. It really gets balled up fast.
Fair enough and totally understandable. I was more thinking along the lines of offering a couple version for sound rather than custom tweaks. Even with that, I have no idea what it would entail in additional R&D and production costs, so you can just ignore my ignorance or give me one of these
. In reality, I'm probably the only person on the forum who wants a muffler as quiet as I'd like so will settle for as quiet as I can get. @http://www.914world.com/bbs2/index.php?showuser=20845 the only thing I might be willing to leave out is the packing material other then that the internals would stay as is which is a mirror of the factory 911 914-6 muffler just in stainless with slightly larger tubing and perfs. That would make it louder. Personally I like quieter now as I have gotten older.
Posted by: Steve Aug 9 2019, 10:09 AM
Looks awesome. I am guessing this is the same internals of your six quiet muffler?
I love the sound and power of your quiet muffler on my 3.2 six. I can actually talk to people inside my car with no noticeable drone.
Posted by: bbrock Aug 9 2019, 10:13 AM
I am good with someone testing it but am not down for tweaking each unit for sound levels.. One thing I have learned is that when you sell a la carte you open your self up to a huge confusing mess.. Rewind 3 years ago when I offered the 914-6 heat exchangers up for the 1st time I offered with or without o2 bungs.. People were sending o2 bungs with all different location requests and trust me nothing was standard.. It really gets balled up fast.
Fair enough and totally understandable. I was more thinking along the lines of offering a couple version for sound rather than custom tweaks. Even with that, I have no idea what it would entail in additional R&D and production costs, so you can just ignore my ignorance or give me one of these
. In reality, I'm probably the only person on the forum who wants a muffler as quiet as I'd like so will settle for as quiet as I can get. @http://www.914world.com/bbs2/index.php?showuser=20845 the only thing I might be willing to leave out is the packing material other then that the internals would stay as is which is a mirror of the factory 911 914-6 muffler just in stainless with slightly larger tubing and perfs. That would make it louder. Personally I like quieter now as I have gotten older.
Quiet is good!
Where I live, loud motors are a lot harder on wildlife than people realize and I've seen real changes in wildlife in our valley as the number of loud boy toys has increased. It's pretty important to me. It seems most people want their 914s to growl, but I'd prefer mine to whisper. 
I'm very interested in your mufflers. I have a NOS Bursch that I want to experiment with different muffs, but don't see it as a long term solution. I know the quality of yours will be second to none and a lifetime investment.
Posted by: Superhawk996 Aug 9 2019, 10:32 AM
I do intend to build an engine test stand once I have an assembled motor. Would be glad to sound clip at that point but given I have a skin graft scheduled for Monday I fear that engine assembly may be a few months off.
I guess I’m only one in Detroit with a 914?? I assumed we had one or two more around here ???
Posted by: mb911 Aug 9 2019, 10:35 AM
I do have my test stand I will be getting rid of shortly just an fyi.
Posted by: TravisNeff Aug 9 2019, 11:02 AM
Very nice Ben!
Posted by: mb911 Aug 9 2019, 07:38 PM
Thanks.
Posted by: mb911 Aug 11 2019, 06:51 PM
I have enough flanges laser cut for 9 of these. Who is in??
Posted by: JeffBowlsby Aug 11 2019, 07:03 PM
700 SIMOLIANS FOR THIS BAD BOY?
Can you post photos from different angles of it mounted on a 2.0L car?
Posted by: mb911 Aug 11 2019, 08:01 PM
700 SIMOLIANS FOR THIS BAD BOY?
Can you post photos from different angles of it mounted on a 2.0L car?
Unfortunately I can't as I sent it off to its new home in Michigan it fits just as a stock muffler fits though.. The next one built I can though..
Posted by: pvollma Aug 11 2019, 08:34 PM
I have enough flanges laser cut for 9 of these. Who is in??
It does not look like it would fit a stock 1976 2.0L that currently has a Bursch. Is that correct?
Posted by: mb911 Aug 12 2019, 05:50 AM
I have enough flanges laser cut for 9 of these. Who is in??
It does not look like it would fit a stock 1976 2.0L that currently has a Bursch. Is that correct?
Does yours have stock 76 heat exchangers?
Posted by: Gatornapper Aug 12 2019, 06:11 AM
Very interested !
Ditto.
GN
Posted by: pvollma Aug 12 2019, 06:32 AM
I have enough flanges laser cut for 9 of these. Who is in??
It does not look like it would fit a stock 1976 2.0L that currently has a Bursch. Is that correct?
Does yours have stock 76 heat exchangers?
Yes.
Posted by: Garland Aug 12 2019, 07:02 AM
I do intend to build an engine test stand once I have an assembled motor. Would be glad to sound clip at that point but given I have a skin graft scheduled for Monday I fear that engine assembly may be a few months off.
I guess I’m only one in Detroit with a 914?? I assumed we had one or two more around here ???
Nope, just waiting on my flywheel to be balanced, and I’ll be back in business. If interested I would be glad to help. Right now running 2.0 exchangers. I should be done by the end of the week.
Michigan Build
Posted by: mb911 Aug 12 2019, 08:00 AM
I have 7 sets of flanges. left but 1 set might be reserved for a display at okteenerfest.
Posted by: Superhawk996 Aug 12 2019, 10:35 AM
I do intend to build an engine test stand once I have an assembled motor. Would be glad to sound clip at that point but given I have a skin graft scheduled for Monday I fear that engine assembly may be a few months off.
I guess I’m only one in Detroit with a 914?? I assumed we had one or two more around here ???
Nope, just waiting on my flywheel to be balanced, and I’ll be back in business. If interested I would be glad to help. Right now running 2.0 exchangers. I should be done by the end of the week.
Michigan Build
1st phase of skin graft surgery this morning. Under doctor orders to not sweat for at least a week while I have some crazy vacuum dressing on the wound to help suck out fluids. Can you believe that crap?
Anyway if you get to the point of being able to bolt on and run I’d be more than happy to meet a local teener and see if we can get a sound clip for Ben. Just PM me if you get close and have interest in trying it out.
Nice engine !
Posted by: Not_A_Six Aug 12 2019, 12:28 PM
@http://www.914world.com/bbs2/index.php?showuser=20845 the only thing I might be willing to leave out is the packing material other then that the internals would stay as is which is a mirror of the factory 911 914-6 muffler just in stainless with slightly larger tubing and perfs. That would make it louder. Personally I like quieter now as I have gotten older.
Sorry for the newbie questions.
Do the factory mufflers use packing material, or just baffles?
What about yours?
Thanks.
Posted by: Superhawk996 Aug 12 2019, 01:20 PM
@http://www.914world.com/bbs2/index.php?showuser=20845 the only thing I might be willing to leave out is the packing material other then that the internals would stay as is which is a mirror of the factory 911 914-6 muffler just in stainless with slightly larger tubing and perfs. That would make it louder. Personally I like quieter now as I have gotten older.
Sorry for the newbie questions.
Do the factory mufflers use packing material, or just baffles?
What about yours?
Thanks.
I'll let Ben speak to his muffler.
However OEM mufflers that I'm aware of all use packing material in one form or another. Adds a mellowness. No packing gets a tinny, high frequency reverberation (sometimes called shell ring) that isn't overly nice. Packing helps reduce sound to manageable levels by acting as acoustic damping.
Posted by: mb911 Aug 12 2019, 02:02 PM
@http://www.914world.com/bbs2/index.php?showuser=20845 the only thing I might be willing to leave out is the packing material other then that the internals would stay as is which is a mirror of the factory 911 914-6 muffler just in stainless with slightly larger tubing and perfs. That would make it louder. Personally I like quieter now as I have gotten older.
Sorry for the newbie questions.
Do the factory mufflers use packing material, or just baffles?
What about yours?
Thanks.
I'll let Ben speak to his muffler.
However OEM mufflers that I'm aware of all use packing material in one form or another. Adds a mellowness. No packing gets a tinny, high frequency reverberation (sometimes called shell ring) that isn't overly nice. Packing helps reduce sound to manageable levels by acting as acoustic damping.
Yes to what superhawk said. We use a high end fiberglass packing.
Posted by: Not_A_Six Aug 12 2019, 02:06 PM
Yes to what superhawk said. We use a high end fiberglass packing.
Thank you both. I expect that a stainless muffler will outlive me. But, what is the life expectancy of the packing?
Posted by: Superhawk996 Aug 12 2019, 02:11 PM
But, what is the life expectancy of the packing?
Ha ! Same for me but in my case the packing will outlive me too!
I hope to still have another 25 - 30 years in me.
Posted by: mb911 Aug 12 2019, 03:06 PM
Yes to what superhawk said. We use a high end fiberglass packing.
Thank you both. I expect that a stainless muffler will outlive me. But, what is the life expectancy of the packing?
I have pulled apart mufflers that are 30 years old still having all the packing.
Posted by: Superhawk996 Aug 12 2019, 03:12 PM
Yes to what superhawk said. We use a high end fiberglass packing.
Thank you both. I expect that a stainless muffler will outlive me. But, what is the life expectancy of the packing?
I have pulled apart mufflers that are 30 years old still having all the packing.
Maybe I've set the bar too low. Maybe I should be shooting for another 50 years.
Posted by: pete000 Aug 12 2019, 04:21 PM
Sound clip??
Posted by: Superhawk996 Aug 12 2019, 06:16 PM
Sound clip??
Some doofus in MI bought 1st unit and doesn't even have engine assembled.
Posted by: Superhawk996 Aug 12 2019, 06:17 PM
Sound clip??
Some doofus in MI bought 1st unit and doesn't even have engine assembled with no ability in near future to get sound clip.
Posted by: Mblizzard Aug 12 2019, 06:18 PM
Sound clip??
Some doofus in MI bought 1st unit and doesn't even have engine assembled.
Let’s lynch that guy!
Posted by: Mblizzard Aug 12 2019, 06:18 PM
Sound clip??
Some doofus in MI bought 1st unit and doesn't even have engine assembled.
Let’s lynch that guy!
Posted by: Superhawk996 Aug 12 2019, 06:23 PM
Sound clip??
Some doofus in MI bought 1st unit and doesn't even have engine assembled.
Let’s lynch that guy!
In my defense, when I saw Ben do the 1.7L/1.8L units (sound clips over there on that thread) I knew I had to have one for 2.0L and was waiting for him to get a good part to fixture off from. Then it all just came together.
Just pretend unit #2 is #1 and have that guy clip it. I'll vouch for the welds . . . . artwork! If Michelangelo were going to paint your car would you insist on seeing the paint samples 1st?
Posted by: Garland Aug 12 2019, 07:40 PM
I’ll be willing to meet up for a bolt on and a sound test. I should be done by the end of the week, so get well and we’ll make that sound clip.
Posted by: frankieshooz Aug 13 2019, 09:23 AM
Woo Hoo! just ordered one of these beauties from Ben! hope to have it in a couple of weeks...will share experience with you all including sound clip on my totally original car...well I guess not totally original after I put this bad boy on...
Posted by: Not_A_Six Aug 13 2019, 10:08 AM
Woo Hoo! just ordered one of these beauties from Ben! hope to have it in a couple of weeks...will share experience with you all including sound clip on my totally original car...well I guess not totally original after I put this bad boy on...
+1
Ben's making me one too! I can't wait to fire it up.
Posted by: twistedstang Aug 13 2019, 10:21 AM
I’ll be willing to meet up for a bolt on and a sound test. I should be done by the end of the week, so get well and we’ll make that sound clip.
Whereabouts are you guys from in MI? I'm up in Lexington and would be game to meet up some day.
Posted by: Superhawk996 Aug 13 2019, 10:34 AM
I'm in Metro Detroit.
A little jacked up at the moment from surgeries but would definitely be interested in a local meet up.
Posted by: mb911 Aug 13 2019, 04:47 PM
Looks like 4 more mufflers worth of flanges.
Posted by: Cairo94507 Aug 13 2019, 04:59 PM
Hey Frankieshooz - Long time no see. Great choice- I am sure you will love Ben's work. His SS heat exchangers and muffler on my car will hopefully be exhaling exhaust very soon on my car.
Posted by: frankieshooz Aug 13 2019, 11:41 PM
hi Michael been an ardent follower of your restoration thread..definitely looking forward to getting together with you soon...lots of stuff happening down the road for my car as I am following your lead and have made arrangements to get my car in the shop with Eric at PMB hopefully early next year!
Posted by: mb911 Aug 20 2019, 08:48 PM
A bunch of these will be done this week. Just got back from Nashville then have to paint James car and finish the mufflers.. Stay tuned.. Plan to ship Thursday the 1st batch..
Posted by: mb911 Aug 22 2019, 02:05 PM
Some of the orders getting ready to ship.. 
Posted by: Not_A_Six Aug 22 2019, 02:27 PM
Some of the orders getting ready to ship..
Posted by: Cairo94507 Aug 22 2019, 03:24 PM
Man, those are beautiful.
Posted by: Not_A_Six Oct 4 2019, 09:34 PM
I've got mine mounted and it fits beautifully.
I can't wait to fire it up and hear it. (Just finishing up an engine rebuild and haven't started it yet...)
I'll try to post a sound clip when I can.
Posted by: bbrock Oct 4 2019, 09:46 PM
I've got mine mounted and it fits beautifully.
I can't wait to fire it up and hear it. (Just finishing up an engine rebuild and haven't started it yet...)
I'll try to post a sound clip when I can.
![popcorn[1].gif](style_emoticons/default/popcorn[1].gif)
Posted by: Triaddave Oct 12 2019, 12:20 PM
Great looking exhaust! very clean which I like. But I Haven't seen any price tags. What is the cost of this exhaust and how about shipping, me or you? I'm interested.
Posted by: mb911 Oct 12 2019, 01:23 PM
http://www.914world.com/bbs2/index.php?showtopic=339869
Still running behind on parts on these.. The laser cutting is taking longer then expected. I want to get these out asap though.
Posted by: Not_A_Six Oct 19 2019, 01:12 PM
Here's a sound clip as promised. I'm still tuning the the idle after an engine rebuild, but this should give a pretty good representation of the muffler's sound. It seems quieter than the Bursch that was on there before, but I'd have to hear them side by side to really compare.
Engine is the original '73 2.0L with stock FI. But, it's just been rebuilt, balanced and slightly bored w/ 96mm pistons giving about 2056cc displacement; cam is a Web Cam #73; solid lifters.
The engine work was done by Hersch Performance Racing AKA Hayden Lake Automotive. I'm pretty happy with their build. They even matched the valve spring rates as part of the balancing.
[Sorry, video link broke...]
Positive and/or helpful comments are appreciated. Snarky remarks shall be tolerated. 
Posted by: Cairo94507 Oct 19 2019, 02:34 PM
I think it sounds good. Looking forward to hearing it once you have the engine all dialed in and broken in. I can't wait to hear Ben's SS heat exchangers and muffler on my car.
Posted by: Triaddave Oct 19 2019, 03:59 PM
I think it sounds great. The tail pipe fits the hole nicely. cool stuff!
Posted by: 914werke Oct 19 2019, 08:12 PM
Very throaty
Posted by: mb911 Oct 21 2019, 10:55 AM
Just a heads up.. Finally got word on laser cuts on these.. We are still 1.5-2 weeks out on making more of these but ready to start taking orders for those interested above a the few that have ordered already.
Posted by: mb911 Nov 13 2019, 02:45 PM
Those that ordered recently 
sort of as the parts were at the laser cutter for months the mufflers are done..
Posted by: orthobiz Nov 13 2019, 05:31 PM
Quiet rules!
Paul
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