Holiday present - New Mufflers for my Mark III

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nortonmargie

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After all we have been through together over the past year, I think I should get a present for my Norton. It has BUB mufflers, which are LOUD. I think somewhat quieter mufflers would be good for both of us. Any suggestions besides the stock Mark III mufflers which are ugly and heavy?

P. S.l If someone wants the BUB mufflers after I install our (me and Norton) holiday present, I will happily sell them for $50 US plus postage
 
What are bub mufflers?
Like many others here I have open type fluted peashooters on my 850 Commando. There are a lot of different versions of the peashooter.

This particular style can be surprisingly quiet if the bike is ridden gently and also are reasonably quiet when cruising. On full throttle acceleration they have a pretty good rasp to them and I like that.
Quiet/loud is very subjective isn't it?

I suspect that any truly quiet silencer will rob a fair bit of power. I tested 2 very quiet silencer types and with both the performance was sapped along with the fun.

Glen
 
What do the Bub mufflers use to dampen sound?
The originals and some of the aftermarket silencers use flutes.

Glen
 
Have no idea, but whatever is in there isn't doing much. About ten decibels less would be nice
 
Bub was a brand name of aftermarket exhaust systems, I remember back in the 80's. Many 2into1, 3into1, 4into1 header systems. Sold for less money than Kerker, Hooker and other well known brands.
This is the first time I've seen peashooters with their name on them.
Bub was a J.C. Whitney house brand in many instances.
Regarded as ill-fitting, (hang down-out, always scraping) hooptie junk in my circle of misfits.
They made pipes for Harleys, and they have since gone out of business.

JMWO
 
Last edited:
I liked my bub pea shooters. And I like my bean cans, I have original Favill designed and aftermarkets, the originals are quieter than the ones you can find today but the aftermarkets are quieter than most peas. Your mind and ears on the street might tell you ,you have lost power hearing less noise , but my MK111 with originals does just fine. Do not compare race bikes with street bikes.

Black cap bean can modification

Considering putting stock exhaust back on my Mk III. Is there any modifications I can do internally to get better performance but have original looks. Same with plastic air box
www.accessnorton.com www.accessnorton.com

www.rgmnorton.co.uk

BLACK CAP SILENCER

RGM NORTON BLACK CAP SILENCER W602 064170
www.rgmnorton.co.uk

75 Commando Muffler Dilema

I have a 1975 Commando MKIII , original unrestored , 1,800 miles on it in the John Player paint scheme in really nice condition. It has the original black cap / bean can mufflers on it , and while up on the lift the other day noticed some rust holes in the bottom of the mufflers, right past the...
www.accessnorton.com www.accessnorton.com

www.ebay.com

06-4170 *UK MADE* Black Cap Chrome Silencers - Norton Commando MK1A/MK2A/MK3 | eBay

<p>Pair of Black cap chrome silencers (Beancan)</p><p>2 1/2" long inlet</p><p>Suitable for Norton Commando MK1A/MK2A (Euro Models) & MK3</p><p>Made in England</p><p>Norton Part Number 06-4170</p>
www.ebay.com
 
andover-norton.co.uk

Motorcycle parts and spares for Norton motorbikes - Genuine Andover Norton Spare Parts - Andover Norton Motorcycles Parts - Original Andover Norton Parts

Motorcycle parts and spares for Andover Norton motorbikes: Andover Norton manufactures and supplies all Genuine Factory Spare Parts for Norton motorcycles built before 2002.
andover-norton.co.uk

andover-norton.co.uk

Motorcycle parts and spares for Norton motorbikes - Genuine Andover Norton Spare Parts - Andover Norton Motorcycles Parts - Original Andover Norton Parts

Motorcycle parts and spares for Andover Norton motorbikes: Andover Norton manufactures and supplies all Genuine Factory Spare Parts for Norton motorcycles built before 2002.
andover-norton.co.uk

andover-norton.co.uk

Motorcycle parts and spares for Norton motorbikes - Genuine Andover Norton Spare Parts - Andover Norton Motorcycles Parts - Original Andover Norton Parts

Motorcycle parts and spares for Andover Norton motorbikes: Andover Norton manufactures and supplies all Genuine Factory Spare Parts for Norton motorcycles built before 2002.
andover-norton.co.uk
 
worntorn said:
What are bub mufflers?
Like many others here I have open type fluted peashooters on my 850 Commando. There are a lot of different versions of the peashooter.

This particular style can be surprisingly quiet if the bike is ridden gently and also are reasonably quiet when cruising. On full throttle acceleration they have a pretty good rasp to them and I like that.
Quiet/loud is very subjective isn't it?

I suspect that any truly quiet silencer will rob a fair bit of power. I tested 2 very quiet silencer types and with both the performance was sapped along with the fun.

Glen
Click to expand...
Denis Manning is BUB Industries. You know….1974 dual Norton engined steamliner that hit 279mph at Bonneville.
 
Yes BUB mufflers are loud. I had a ‘78 Ducati 860GTS that came to me with BUB ContI replicas…..very loud. The bike on the left in this photo. My stable in 1986.
Holiday present - New Mufflers for my Mark III
 
I hope there is enough info now about a Christmas upgrade for the OP's exhaust with pea shooter design. Plenty of choices.

It seems that there are several iterations of BUB and motorcycle aftermarket exhaust products

Bub Exhaust was a company that manufactured and sold motorcycle exhaust systems. The company was founded in 1995 by Bubba Blackwell, a former professional motorcycle racer. In 2001, Blackwell partnered with Jeff Hance, a successful entrepreneur, to help grow the business.
In 2006, Blackwell and Hance sold Bub Exhaust to J&P Cycles, a large retailer of aftermarket motorcycle parts and accessories. J&P Cycles continued to sell Bub Exhaust products for several years but eventually discontinued the brand due to poor sales.


Denis Manning founded BUB Enterprises early on and made exhaust systems and chased the land speed records for motorcycles. BUB was short for Big Ugly B@st@rd, which I guess he felt he personified. Of note to Commando owners was a 2-1 system that he felt was a design that improved mid range performance.

Around 2015, two of his employees carried on under BUB Design Inc.
 
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BUB story

Denis Manning himself made a one off 2 into 1 for my P11 when he was in a small garage shop in an industrial complex in San Jose California. All prior to him making it big. It had a tube baffle wrapped in fiberglass insulation that fell apart after a few thousand miles. I eventually modified the exhaust so that it worked a little better by making a 6" longer center section behind the collector and adding a SuperTrap.

It no longer has the SuperTrap discs in it. I made a long baffle for it last year I think and stuffed it inside and slid that SuperTrap race tip pictured below over the end of it. Then bolted it up. It's quieter than it was with the SuperTrap discs, but still barks enough to turn heads when the throttle is opened.

Holiday present - New Mufflers for my Mark III



Holiday present - New Mufflers for my Mark III


Holiday present - New Mufflers for my Mark III


People enjoy making fun of the goofy looking mount. Knock yourselves out. It's been on there for over 40 years.
 
worntorn said:
That mount will never hold up.
Click to expand...
Exactly

Can't see all of it in the pic. It has a short welded tab and another one of those bendy aluminum brackets bolted to threaded inserts on the other side. The long section has a lot of wiggling give to it. I've hit many a bump and it's still there. BUB put a skinny piece of chromed 8" long 1x1/8" metal stick on it connected to a tall welded on tab that cracked the megaphone where the tab was welded. I had it repaired a long time ago before I parked it. Most of the 40 years is in the corner of the garage. My barnyard final modifications were done 2 years ago. It has about 5K miles on it since making the mods. Total milage is a lot higher with that pipe on the bike, but nothing record breaking. I had 6 other bikes to ride back then. The Norton was not my first choice. Now it is my only choice if I want to ride.

Well that is enough side tracking and going off the rails for today.
 
Schwany said:
BUB story

Denis Manning himself made a one off 2 into 1 for my P11 when he was in a small garage shop in an industrial complex in San Jose California. All prior to him making it big. It had a tube baffle wrapped in fiberglass insulation that fell apart after a few thousand miles. I eventually modified the exhaust so that it worked a little better by making a 6" longer center section behind the collector and adding a SuperTrap.

It no longer has the SuperTrap discs in it. I made a long baffle for it last year I think and stuffed it inside and slid that SuperTrap race tip pictured below over the end of it. Then bolted it up. It's quieter than it was with the SuperTrap discs, but still barks enough to turn heads when the throttle is opened.

Holiday present - New Mufflers for my Mark III



Holiday present - New Mufflers for my Mark III


Holiday present - New Mufflers for my Mark III


People enjoy making fun of the goofy looking mount. Knock yourselves out. It's been on there for over 40 years.
Click to expand...
Looks cool and business like to me. With a reverse cone and flaking chrome, it would look like what the kids in my Dallas neighborhood were using. The theme then was to take off the heavy muffler and put on a short reverse cone megaphone, any kind of bracket, maybe plumber’s tape. In those days, the Dallas cops would pull you over, run their night stick up your pipe, no baffle, you got an “anti-noise” ticket. Not here in California, run straight pipes if you want to, maybe run an even louder stereo in your fairing with 500 watts per channel. Who cares? Cops sure don’t.
 
jamesp said:
maybe run an even louder stereo in your fairing with 500 watts per channel. Who cares? Cops sure don’t.
Click to expand...
There’s a Harley Street Glide Special for sale over here currently that has a £6500 ($8200 USD) music system upgrade !!!

I didn’t even know that was possible…
 
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