ChopCult Exhaust Pictorial


Custom crafting DIY exhaust pipes is a rite of passage among home builders. Until you've done a set for your scoot, you're either running someone else's idea of what's cool, or you're rolling stock. Neither compromise is a good one.

Kits are available that make pipe building super easy, and anyone with a welder and a hacksaw can cobble a set of straight pipes on a saturday afternoon.

Aftermarket tips are another way to dress up your custom pipes. If you're handy on a lathe, you can spin a set like the stylish brass tips shown below in a couple hours.

More exotic bends, flares and shapes demand greater fabricating skill, but hey—it's only metal. If you completely screw it up, grab another length of 1-3/4-inch muffler tubing and start over. The most important thing you must bring to the work bench is a little patience and a lot of creativity.



Everyone's heard the joke about only giving her the tip, so we won't repeat it. Brass tips on ScotchBrite raw steel look great



Faux mufflers can be accomplished by either necking down the large O.D. tubing or flaring out the smaller sections to mate at the joint. Diligent hammering and massaging will create a joint that can be welded, flap disked and polished to form a sexy external butt. These bulged sections look great



This 2-into-1 exhaust assembly leads into a cocktail shaker with plenty of patina to match the rest of his machine



More views of flared and swedged tube shapes. Subtle treatments like these are always cheaper and usually more stylish and satisfying than any factory-made pipe dressing you can buy



Lots of work went into these twin fish tips. Their shape and detailing are appropriate in the context of the other decorative metalwork and accessories on this machine



Handy with a mill? Bust out some billet alloy and go to town. These fluted and ventillated lake pipe baffles might look over the top on your garage-built chopper, but their detailing can not be denied



Speaking of knuckleheads, don't put your dreamsicle in that saddle bag or the con trail from cylinder one will melt it



Balogna cuts aren't just for looks. The wind that whistles by these openings actually creates a scavenging effect to pull exhaust gases out of the pipe. It's a trick dreamed up by internal-combustion pioneers a century ago, but it still works today



Cocktail shakers are a classic Brit bike affectation, but look right at home on this late-model Sportster. Ditto the heat shields above the passenger pegs. Style doesn't have to cost an arm and a leg, and if it's done right, it doesn't have to burn a leg, either



More tips for your consideration. Choose wisely and your bike will look and sound great



P-clamps around the end section on these pipes are mandatory. Ideally, every exhaust pipe needs two fastening points: the head and the tip. If you've got slide-on mufflers or super-long pipes, a third mount at the midpoint never hurts



Comment with Facebook


Comment with Chopcult (25)

Commented on 1-6-2010 At 07:40 am

nice article, cocktail shakers are the shit.

Commented on 1-6-2010 At 09:52 am

great article with lots of inspiration! im thinkin somehtin with a little in depth how to would be cool. i personally dont know jack fuck about finishing the metal to be polished or chromed or the afore mentioned necking down? sorry for the tard questions, im new to the idea of makin stuff look good.

Commented on 1-6-2010 At 10:04 am

Another great write up! I've had a thing for cocktail shakers and 2-1's lately...

Commented on 1-6-2010 At 01:20 pm

Kickass write-up...wish these things came out daily. Keep up the good work fellas!

Commented on 1-6-2010 At 01:35 pm

No worries about the leather bag on the knuck, if it doesn't get ridden, the bag will be fine...and trust me, it doesn't get ridden.

Commented on 1-6-2010 At 05:02 pm

I always liked the cocktail shaker style.

Commented on 1-6-2010 At 05:05 pm

Very good. I'm looking to start making mine up soon so this article came right at the best time.

Some more info on material choice/coatings/prep would be handy too. I'm deliberating whether to fab from mild and chrome, or fab from stainless....?

Commented on 1-6-2010 At 05:15 pm

i like it, should be weldin up a set soon for my buddys xlch

Commented on 1-6-2010 At 08:06 pm

vented lake pipe baffs look bad ass!

Commented on 1-6-2010 At 09:48 pm

Man, straight pipes on that K-model!!! Wap-wap-wap

Commented on 1-6-2010 At 09:51 pm

i dig the shakers and fish tails. i would think for the scavenging effect to work effissiently the outlet would need to be 90degs to the air flowing over the outlet. much like the emulssion tube on a carb. im not saying that it is not efficient being slash cut. just not as effcient as i could be. im always trying to figue out ways to make things faster.

Commented on 1-7-2010 At 09:00 am

Thanks for the article. It really has me thinking about my next bike.

Commented on 1-8-2010 At 06:00 am

Do 2' long straight pipes *really* need any scavenging? hehe

Commented on 1-8-2010 At 03:40 pm

BILTWELL exhaust tips for the WINNNN

Commented on 1-8-2010 At 05:44 pm

If I could put those brass tips on my pipes I think I'd sleep with my bike instead of my old lady

Commented on 1-9-2010 At 04:46 am

The Knucklehead's pipes are my choice...
Straight, clean and stylish!

Commented on 1-9-2010 At 09:53 pm

just finished bending and welding pipes for my bros this shit and might do it for my sporty.

Commented on 1-10-2010 At 06:04 am

excilent right up! enjoyed the pics and story and a little bit of a history lesson to boot

Commented on 1-10-2010 At 07:24 am

Nice. How about a down and dirty how-to or tips article? I've mangled many a foot of 1 3/4 pipe trying for that perfectly radiused bend...

Commented on 1-10-2010 At 07:44 am

tips on pipe building are available in the CC forum, or at Several CC members have written threads on this subject. Enjoy!

Commented on 1-15-2010 At 03:20 am

best part about that fresh set of pipes...starting the bike for the first time and listening to you rides new sure my neighbors share in my enthusiasm haha

Commented on 1-26-2010 At 06:26 pm

time to order a building set

Commented on 2-18-2011 At 02:26 am

Another fine wright up!

Commented on 4-14-2011 At 06:31 am

i like the commentary about bologna cuts on straight drags. it's always nice to get the history behind a traditional style that started off as a functional advancement...i'm a such a geek for that stuff! i totally have a straight drag unbaffled heat-wrapped bologna cut boner right now

Commented on 12-30-2011 At 02:23 am

Does anyone make a cocktail shaker exhaust that isn't pre-chromed?

Please Login to Comment


ADVERTISE    |    CONTACT    |    ©2009 - 2017 ChopCult    |    REPORT ABUSE    |    CONDUCT

Chopcult on Instagram Chopcult on Pinterest Chopcult on Tumblr Chopcult on Facebook Chopcult on Twitter