New -6 and 911 muffler plus possible type 4 muffler.. With an inside look. Options

[mb911]

As many of you know I started ,designed, owned M&K exhaust and sold it now about 6 years ago. The new owner and I have been discussing the need for a quiet good flowing muffler that is stainless and of the highest quality. So I decided to design a new muffler that mimics the original design and something that could be marketable. After much analysis of the stock muffler this is what I came up with. I will be offering a group buy in the near future on these mufflers. Please note these will be single out let only and I will still need to do some testing. I may offer a few good deals for those willing to test the completed mufflers.

Please note these are completely my design and will be sold with the m&b specialties name but others will carry the product like m&k..

[arne]

Ben, if these will be offered in single inlet as well as 2-in, I'd be interested in one for my 3.2 Carrera. The current offerings are either too loud for my taste, or less than acceptable build quality.

[mepstein]

I think the 911 crowd is going to go nuts for these.

(IMG:style_emoticons/default/smilie_pokal.gif)

[Cairo94507]

If this will mate perfectly to your larger Six heat exchangers....I see the complete set-up in my future. What a great product line. (IMG:style_emoticons/default/smilie_pokal.gif)

[mb911]

These will be only 2 in 1 outs everything else you should go with other options like m&k ( I get no reimbursement saying that) etc. And yes a package would be perfect. I actually have a set of 1.5" heat exchangers 80 percent done that are not spoken for. If someone wants a deal ..

[arne]

These will be only 2 in 1 outs...

I thought that would probably be the case, looking at the internal design. Not so good for me, then. But I've got a friend locally with a '73.5 T who could use something like this to replace his rusty Bursch. Will be watching for this in the future.

[JmuRiz]

Very cool, the hits just keep coming from you eh?

If I didn't already have an old M&K sport muffler I planned on sending to you for upgrades (rally style 3rd pipe and caps for the centers), I'd totally get one.

I'm getting old, have neighbors REALLY close to my house and a young child, so a lower volume would be great!

PS: I really wish I lived closer...you could design a custom exhaust for my Audi C5 S6 wagon (IMG:style_emoticons/default/biggrin.gif)

[mb911]

I should have something ready by the end of the week with pricing.

[Chris914n6]

Interesting. I just started looking into a 2in1out that won't choke 300hp. I like quiet, hate drone, and love the sound of the stock 1in1out banana currently on my 3.0.

[gereed75]

Been looking also. Your design looks similar to the classic mods recommended on the stock banana as you well know.

Will be very interested in doing a Beta for you on my 2.4 Mod Solex Weber carbbed six hot rod (IMG:style_emoticons/default/biggrin.gif)

Want something with a bit more sex than my stock banana. Boy that sounds perverted !!

Will be running in a PCA track event on August 4. That would get you some exposure for a good public test.

[914_teener]

Am I the only one interested in a dual for a type IV that will mimic a triad but a tad quieter?

[bandjoey]

Type IV depending if it sounds good, not too loud, and csob priced. Keep us posted.

[mb911]

I am bound by non compete clause that I can only do 1 design. So inlets are the only thing that I can change..

Type 4 would be the only option besides 2 in..

[914_teener]

I am bound by non compete clause that I can only do 1 design. So inlets are the only thing that I can change..

Type 4 would be the only option besides 2 in..

Understood....

Meaning single out I.d assume.

I.m not necessarily a csob but for a type IV a reasonable price would be ok.

Thanks for putting a feeler out there.

[mb911]

I am bound by non compete clause that I can only do 1 design. So inlets are the only thing that I can change..

Type 4 would be the only option besides 2 in..

Understood....

Meaning single out I.d assume.

I.m not necessarily a csob but for a type IV a reasonable price would be ok.

Thanks for putting a feeler out there.

If I were to do a group buy on both options it would make the most sense. The type 4 is an interesting thing as I don't have a type 4 to try it on and don't have laser cuts or drawings for the type 4 flanges so as far as what people may or may not want sound wise may not be an option because again I am only able to make 1 internal design.

[BillC]

Well, if you do decide to do a T4 design, especially one that will fit a 1.7, I would definitely be interested.

If I were closer, I'd bring my car over for you to use as a guinea pig.

[maf914]

I would be interested in the muffler with inlets for a 73-74 2.0L T4. Good luck with this project.

[Dave_Darling]

Remember that there are three different Type VI/914 exhaust flange patterns, and they all wind up at different heights/widths relative to the chassis of the car!!

Here is a diagram of the widths and such, courtesy of Jeff Bowlsby:
(IMG:http://www.914world.com/bbs2/uploads_offsite/bowlsby.net-121-1499816903.1.jpg)

And, of course, the 75-76 version has a single pipe in each exchanger instead of the dual pipes.

Make sure you clearly note what version of the exhaust the muffler is compatible with. And if you can make versions that are compatible with each, that would be amazing... (And more expensive, sad to say.)

--DD

[mb911]

I think they will be too expensive for type 4 customer's.. I think even in a group buy i could see it at 700 to make money sense. With the -6 or 911 I can probably do it for less on a group buy .. Retail will be 800 plus though.

[Krieger]

What do you think the weight would be compared to stock? And the reaching question, do you have any idea where the sound would be for us track guys with db requirements? With a stock muffler I have had no issues at Laguna Seca. I can't remember if it's 90 or 92 decibels.