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Python Slash Cut Slip On Mufflers - 1801-0256

  • Part #:
    4403079
  • Manufacturer Part #:
    1801-0256
Our Price: $248.95

Overview of Python Slash Cut Slip On Mufflers - 1801-0256

  • Get the famous Python look and performance while still using the stock header pipes
  • Use the same baffle as the Python full systems
  • Feature an embossed Python logo on each muffler
  • Come complete with all necessary mounting brackets and instructions
  • Removable baffle
  • Made in the U.S.A.

Included Items:
(2) Slip-on casings-LH/RH
(4) 5/15-18 x 5/8 in. Flange bolts
(2) 5/16-18 x 3/4 in. HX-HD bolts
(2) 5/16-18 Lock nuts
(2) Dog-Bone nut plates
(4) 5/16 in. Flat washers
(1) Instructions

NOTE: Not all products are legal for sale or use on pollution controlled vehicles. Check your local laws and the manufacture's information.

Installation of a new exhaust system may change your motorcycles fuel-air mixture requirements. Please consult the exhaust manufacturer directly with questions regarding any modifications that may need to be made during, or after, installing their product. If a jet kit or fuel processor is recommended, see FUEL/INTAKE section.

There is no warranty on exhaust pipes and mufflers with regard to any discoloration. Discoloration (bluing) is the result of tuning characteristics, cam timing, carburetor jetting, overheating, etc., and is not caused by defective manufacturing. See CHEMS/LUBES section for products that will help prevent or remove bluing.

The Air Resources Board (ARB) does not permit the use of aftermarket emission-related parts that alter the air/fuel ratio of an emission-controlled vehicle. Due to these legal restrictions this part cannot be shipped to California.

Specs for Python Slash Cut Slip On Mufflers - 1801-0256

Color - Primary Chrome
Finish Chrome
Style Bologna/Slash-Cut Tip
Type Slip-On/Muffler
Units Pair
Weight 12.80 lbs

Specs for Python Slash Cut Slip On Mufflers - 1801-0256

Color - Primary Chrome
Finish Chrome
Style Bologna/Slash-Cut Tip
Type Slip-On/Muffler
Units Pair
Weight 12.80 lbs

Fitment for Python Slash Cut Slip On Mufflers - 1801-0256

See if this part fits your ride

Part 4403079 fits the following machines

Harley-Davidson
  • 2011 Harley-Davidson Softail Cross Bones - FLSTSB
  • 2010 Harley-Davidson Softail Cross Bones - FLSTSB
  • 2009 Harley-Davidson Softail Cross Bones - FLSTSB
  • 2008 Harley-Davidson Softail Cross Bones - FLSTSB
  • 2017 Harley-Davidson Softail Deluxe - FLSTN
  • 2016 Harley-Davidson Softail Deluxe - FLSTN
  • 2015 Harley-Davidson Softail Deluxe - FLSTN
  • 2014 Harley-Davidson Softail Deluxe - FLSTN
  • 2013 Harley-Davidson Softail Deluxe - FLSTN
  • 2012 Harley-Davidson Softail Deluxe - FLSTN
  • 2011 Harley-Davidson Softail Deluxe - FLSTN
  • 2010 Harley-Davidson Softail Deluxe - FLSTN
  • 2009 Harley-Davidson Softail Deluxe - FLSTN
  • 2006 Harley-Davidson Softail Deluxe - FLSTN
  • 2005 Harley-Davidson Softail Deluxe - FLSTN
  • 2008 Harley-Davidson Softail Deluxe (EFI) - FLSTN
  • 2007 Harley-Davidson Softail Deluxe (EFI) - FLSTN
  • 2006 Harley-Davidson Softail Deluxe Injected - FLSTN I
  • 2005 Harley-Davidson Softail Deluxe Injected - FLSTN I
  • 2017 Harley-Davidson Softail Slim - FLS
  • 2016 Harley-Davidson Softail Slim - FLS
  • 2015 Harley-Davidson Softail Slim - FLS
  • 2014 Harley-Davidson Softail Slim - FLS
  • 2013 Harley-Davidson Softail Slim - FLS
  • 2012 Harley-Davidson Softail Slim - FLS
  • 2017 Harley-Davidson Softail Slim S - FLSS
  • 2016 Harley-Davidson Softail Slim S - FLSS
4.9 / 5.0
32 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
29
3
0
0
0
Finish
4.9 / 5
Fit
5.0 / 5
Performance
4.8 / 5
Styling
5.0 / 5
Value
5.0 / 5
Loudness
Very Quiet
Average
Very Loud
Would you recommend this product?
Yes (1)
Finish
5 / 5
Performance
5 / 5
Python Mufflers
Excellent sound. Their size looks better on the bike than stock HD mufflers. My dyno guy says they out-perform most slip-ons he's seen. They'd be perfect if they didn't have logos.
October 22, 2009
Finish
5 / 5
Performance
5 / 5
Great Pipes, Great Value
These slip-on are some of the best I have ever heard. They have a nice low tone and are not obnoxious. They are very well made and after a week of use, no bluing. The fitament is great. With the factory head pipes and heat shields attached, it looks like drag pipes. Very smooth transition between shields and mufflers. Would recommend them to anyone looking to upgrade the factory exhaust.
April 12, 2010
Finish
5 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
4 / 5
Great Purchase for HD Softail Deluxe
The Python slash cut slip on mufflers were a perfect fit for my 2008 HD Softail Deluxe. Installation was a breeze. The stock exhaust was much more difficult to remove. The mufflers sound great especially the deep tone in 6th gear. They are not too loud but do make a HD sound like it is suppose to sound minus the stock mufflers. Great price for a well made set of mufflers that perform well.
April 25, 2011
Finish
5 / 5
Performance
5 / 5
Look awesome and sound awesome!
Could not be happier with these. Put them on my wifes 2010 Street Bob. They look awesome! For the people out there who cant afford to go to a full system, get these pythons. They look amazing, and sound even better! They have a good loud crisp sound, ya know, like a Harley is supposed to sound. I would recommend these to anyone. Easy install, great price, look great, and sound great, cant beat that period.
February 4, 2010
Finish
5 / 5
Performance
5 / 5
Best Harley Sound
I purchased these mufflers for my 2012 Dyna FXDC because I wanted that Harley sound and I was not disappointed.It took me a half hour to switch these out. The original mufflers came off very easy being the bike was brand new and the Python's slipped right on and bolted on very easy no problem.
I took it out for a ride and I was very happy it has that Harley sound and when you get on it it will bark and let people know your coming. I would highly recommend these to anyone.
April 12, 2012
Finish
5 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
5 / 5
Great Deal - Awesome Mufflers
I installed these on the FXD, took all of 10 minutes. Fit and looks are wonderful, nice chrome finish. Sound (with baffles in) is just right; Nice tone as I roll parking lots and lower gear speeds, wicked tone when cracked hard or rolling the hwy. Very pleased!
August 27, 2010
Finish
5 / 5
Performance
5 / 5
No Review Title Entered By User
aesthetically one of the best mods added to my Forty-Eight. The sound compared to the stock slip-on's is much more audible but no where near obnoxiously loud to annoy the neighbors... Deep bass and no drone at highway speeds, but let the butterfly valve fully open at low RPM's and cagers will know you're near... I highly recommend the Python slip-on's from DennisKirk...!
July 27, 2011
Finish
5 / 5
Performance
5 / 5
Don't think twice
Very satisfied across the board! Python's circumference is better matched to the head pipes than the stock mufflers (2007 Nightster) Impressed w/the dead wieght of the Python mufflers considering you can see straight thru but yet they're around 1/2 the stock weight. True test...the sound - Super pleased! Not obnoxious nor hollow or tinny like drilled stockers but rather these are deep like you expect a Harley to be. When you crack the throttle...Well, you KNOW you did good choosing these slip-ons period.
Tip #1 for replacing stockers on older bike: "Do" remove the rear head pipe & muffler as one unit & then spray lubricant heavily where muffler & head pipe meet. Stand assembly upright so lubricant gets in-between. Now repeat on front while rear is "loosening up" You'll never pull them apart otherwise if the stock mufflers have not previously be apart from the head pipe.
Tip #2, don't skimp on new gaskets, you'll trash the stock gaskets digging them out so get new ones. Under $20 for all 4 gaskets at the dealer w/tax...no brainer! I Also ditched the stock paper air filter for a K & N replacement for $64 thru D. K. at same time. Between Python mufflers & K & N filter swap, the bike is clearly a lot crispier than I presumed it'd be & it nearly got away from me so be ready your first ride after muffler & air filter swap!
April 3, 2011
Finish
5 / 5
Performance
5 / 5
Great sound!
these pipes rock! Have a great "low rumble" to them and my Harley finally sounds like a Harley. They are head-turners for sure. Easy to install also.
March 22, 2011
Finish
5 / 5
Performance
5 / 5
Perfect
After shopping around for months, I finally decided to get these slip ons for my street bob. I ordered from Dennis Kirk and they came very quick. After the same reported problems of removing the old pipes, I got these bad boys installed and couldnt be happier. Deep tone, no "tinny sound", and amazing look. They are great for cruising with no drone, but crack the throttle and these beasts wake right up. Not a better slip on out there for your dollar.
April 2, 2012
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Browse 1 question Browse 1 question and 1 answer
How do I listen to these?
A shopper on Oct 4, 2016
BEST ANSWER: I do not show any existing place that provides sound samples for these, contact Python directly for more accurate sound information.

Instructions and Manuals for Python Slash Cut Slip On Mufflers - 1801-0256

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