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Supertrapp Chrome Mean Mothers II Staggered Drag Pipe Exhaust System - 138-72590

  • Part #: 4404508
  • Manufacturer Part #: 138-72590
This item is no longer available

Overview of Supertrapp Chrome Mean Mothers II Staggered Drag Pipe Exhaust System - 138-72590

  • An attractive, newer version of the Mean Mothers exhaust system that incorporates a slew of new features and produces industry-leading horsepower and torque increases
  • Pre-installed baffles are easily removed; rugged and simplified bracket system carries fewer pieces, and pre-installed heat shields feature OEM fasteners
  • OEM fasteners on the heat shield can be removed, and the heat shield can be replaced
  • Include standard end cap
  • Recommend using exhaust gaskets PART NO. H26-203; available separately

Included Items:
(2) Drag Pipes
(2) Heat Shields
(1) Mounting Bracket
(2) 3/4 in. Spacers
(4) 5/16-18 x 3/4 in. Hex Head Bolts
(2) 5/16-18 x 2 in. Hex Head Bolts
(2) 5/16 in. Flat Washers
(2) 5/16 in. Lock Washers

Optional End Caps:
Standard End Cap: 449099
Turndown/Turnout End Cap: 449100
Slash-cut End Cap: 449101

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

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

NOTE: 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 the FUEL/INTAKE section

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 Supertrapp Chrome Mean Mothers II Staggered Drag Pipe Exhaust System - 138-72590

Finish Chrome
Style - Exhaust Tip Straight-Cut Tip
Type - Exhaust 2-Into-2 System
Units Each
Weight 23.10 lbs

Specs for Supertrapp Chrome Mean Mothers II Staggered Drag Pipe Exhaust System - 138-72590

Finish Chrome
Style - Exhaust Tip Straight-Cut Tip
Type - Exhaust 2-Into-2 System
Units Each
Weight 23.10 lbs

Fitment for Supertrapp Chrome Mean Mothers II Staggered Drag Pipe Exhaust System - 138-72590

See if this part fits your ride

Part 4404508 fits the following machines

Harley-Davidson
  • 2011 Harley-Davidson Dyna Fat Bob - FXDF
  • 2010 Harley-Davidson Dyna Fat Bob - FXDF
  • 2009 Harley-Davidson Dyna Fat Bob - FXDF
  • 2008 Harley-Davidson Dyna Fat Bob (EFI) - FXDF
  • 2009 Harley-Davidson Dyna Low Rider - FXDL
  • 2008 Harley-Davidson Dyna Low Rider (EFI) -FXDL
  • 2007 Harley-Davidson Dyna Low Rider (EFI) -FXDL
  • 2006 Harley-Davidson Dyna Low Rider Injected - FXDL I
  • 2011 Harley-Davidson Dyna Street Bob - FXDB
  • 2010 Harley-Davidson Dyna Street Bob - FXDB
  • 2009 Harley-Davidson Dyna Street Bob - FXDB
  • 2008 Harley-Davidson Dyna Street Bob (EFI) - FXDB
  • 2007 Harley-Davidson Dyna Street Bob (EFI) - FXDB
  • 2010 Harley-Davidson Dyna Super Glide - FXD
  • 2009 Harley-Davidson Dyna Super Glide - FXD
  • 2008 Harley-Davidson Dyna Super Glide (EFI) - FXD
  • 2007 Harley-Davidson Dyna Super Glide (EFI) - FXD
  • 2011 Harley-Davidson Dyna Super Glide Custom - FXDC
  • 2010 Harley-Davidson Dyna Super Glide Custom - FXDC
  • 2009 Harley-Davidson Dyna Super Glide Custom - FXDC
  • 2008 Harley-Davidson Dyna Super Glide Custom (EFI) - FXDC
  • 2007 Harley-Davidson Dyna Super Glide Custom (EFI) - FXDC
  • 2006 Harley-Davidson Dyna Super Glide Custom Injected - FXDC I
  • 2006 Harley-Davidson Dyna Super Glide Injected - FXD I
  • 2011 Harley-Davidson Dyna Wide Glide - FXDWG
  • 2010 Harley-Davidson Dyna Wide Glide - FXDWG
  • 2008 Harley-Davidson Dyna Wide Glide (EFI) - FXDWG
  • 2007 Harley-Davidson Dyna Wide Glide (EFI) - FXDWG
  • 2006 Harley-Davidson Dyna Wide Glide Injected - FXDWG I
  • 2006 Harley-Davidson Street Bob Injected - FXDB I
  • 2006 Harley-Davidson Super Glide Injected - FXD I 35
4.5 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
1
1
0
0
0
Finish
5.0 / 5
Performance
4.5 / 5
Finish
5 / 5
Performance
5 / 5
THE PURFACT REPLACEMENT PIPE FOR DYNA
FOR STARTERS THE INSTRUCTIONS NEED TO BE WRITTEN IN CRAYON IF YOU EXPECT A DEALER TO INSTALL. I READ REVIEWS WHERE PEOPLE AND DEALERS HAD TROUBLE INSTALLING THESE PIPES AND I THOUGHT IT WAS A FLUKE SEEING THAT SUPERTRAPPS REPUTATION IS OUTSTANDING. I WORK ON MY STUFF BUT SEEING I PUT THESE ON A CVO I WANTED THE DEALER TO DO IT SO IT WOULD BE DONE RIGHT,
WRONG MOVE. THE DEALER COULD NOT GET THESE PIPES ON. SO I TOOK THEM HOME AND IN 2 HOURS HAD THEM INSTALLED MYSELF. THE KEY IS "FOLLOW THE INSTUCTIONS AND USE COMMON SENSE AND YOU CAN GET THEM RIGHT. WOULD ADVISE GETTING A 1/4 INCH LONGER BOLT THAN SUPPLIED FOR THE LOWER MOUNT BOLT. NOW THE GOOD NEWS .... MADE MY CVO COME TO LIFE. SOUNDS LIKE A HARLEY NOW AND RUNS LIKE A 110 INCH SHOULD. LOOKS GREAT AMD SOUNDS LIKE A MEAN MOTHER WITH BAFFLES LEFT IN. GOOD FIT AND NICE FINISH. BUT TAKE YOUR TIME. P.S. THE STUD WHERE THE LOWER MOUNT HOLE IS HAS TO BE REMOVED AND THE SPACERS MUST BE USED, THIS MAKES THE MOUNTING BRACKET SITTING AT A BIT OF AN ANGLE THE BOTTOM OUT MORE THAN THE TOP, THIS IS THE WAY IT NEEDS TO BE !!!!! LITTLE TRICKY BUT WORTH THE EFFORT
March 1, 2011
Finish
5 / 5
Performance
4 / 5
will turn heads
exhaust sounds, looks really good specially the black. the matt black finish is excellent. baffles can really easily be taken out. the original buffles are annoyingly loud (to me at least) so wrap it w/ fiberglass or you can also use v&h quiet baffles or one of the cobra quiet baffles and that should give a nice balance. yes save your ear! this exhaust really looks good on harleys dark customs as it has a low profile look. everyone runs v&h pipes but if you wanna be different this is a good option.
June 23, 2013
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