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Cobra 2-into-2 Speedster Streetrod Slash-Down Exhaust System - 3917

  • Part #:
    4400221
  • Manufacturer Part #:
    3917

MSRP Price: $545.95

Our Price: $491.35

You Save:
$54.60 (10%)
1 on Hand

Overview of Cobra 2-into-2 Speedster Streetrod Slash-Down Exhaust System - 3917

  • 2 1/2", 222 degree full-length heat shields fit tip-to-tip
  • Beautiful machined billet end caps produces a great look for your bike
  • Best fit and finish exhaust on the market
  • Power increase with improved rideability
  • Features removable baffles
  • Easy installation with all mounting hardware included
  • Made in the U.S.A.

For replacement baffle use 44-03615


Included Items:
(2) Headpipes w/heatshields
(1) Muffler Set
(1) Mounting bracket
(1) Hardware Kit

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

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

Exhaust discoloration (bluing) is caused by engine conditions such as cam timing, fuel-air mixture, operating temperature, etc. It is not the result of defective manufacturing, therefore is not covered by any warranty. See Chems/Lubes section for products to help remove or prevent exhaust discoloration.

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 Cobra 2-into-2 Speedster Streetrod Slash-Down Exhaust System - 3917

Color - Primary Chrome
Finish Chrome
Style Bologna/Slash-Cut Tip
Type 2-Into-2 System
Units Each
Weight 32.00 lbs

Cross reference number(s):

18100528

Specs for Cobra 2-into-2 Speedster Streetrod Slash-Down Exhaust System - 3917

Color - Primary Chrome
Finish Chrome
Style Bologna/Slash-Cut Tip
Type 2-Into-2 System
Units Each
Weight 32.00 lbs

Fitment for Cobra 2-into-2 Speedster Streetrod Slash-Down Exhaust System - 3917

See if this part fits your ride

Part 4400221 fits the following machines

Suzuki
  • 2008 Suzuki C50B Boulevard
  • 2007 Suzuki C50B Boulevard
  • 2006 Suzuki C50B Boulevard
  • 2005 Suzuki C50B Boulevard
  • 2006 Suzuki M50B Boulevard
  • 2005 Suzuki M50B Boulevard
  • 2008 Suzuki VL800 Boulevard C50
  • 2007 Suzuki VL800 Boulevard C50
  • 2006 Suzuki VL800 Boulevard C50
  • 2005 Suzuki VL800 Boulevard C50
  • 2004 Suzuki VL800 Intruder Volusia
  • 2003 Suzuki VL800 Intruder Volusia
  • 2002 Suzuki VL800 Intruder Volusia
  • 2001 Suzuki VL800 Intruder Volusia
  • 2004 Suzuki VL800B Intruder Volusia SE
  • 2008 Suzuki VL800C Boulevard C50C
  • 2007 Suzuki VL800C Boulevard C50C
  • 2006 Suzuki VL800C Boulevard C50C
  • 2008 Suzuki VL800T Boulevard C50T
  • 2007 Suzuki VL800T Boulevard C50T
  • 2006 Suzuki VL800T Boulevard C50T
  • 2005 Suzuki VL800T Boulevard C50T
  • 2005 Suzuki VL800Z Boulevard C50Z Limited
  • 2004 Suzuki VL800Z Intruder Volusia Limited Edition
  • 2008 Suzuki VZ800 Boulevard M50
  • 2007 Suzuki VZ800 Boulevard M50
  • 2006 Suzuki VZ800 Boulevard M50
  • 2005 Suzuki VZ800 Boulevard M50
  • 2008 Suzuki VZ800Z Boulevard M50Z Limited
  • 2007 Suzuki VZ800Z Boulevard M50Z Limited
5.0 / 5.0
20 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
19
1
0
0
0
Finish
4.9 / 5
Fit
5.0 / 5
Performance
4.9 / 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
Good sounding pipes
I installed these pipes on my c50 also installed corbra fuel managment. They are absoutley the best sounding pipes i have ever heard. The fuel processor works just like they said it would. The install took about 3 hours for pipes and fuel processor. A easy install....
The Bike has a noticiably more power.
February 22, 2010
Finish
5 / 5
Performance
5 / 5
great exhaust system
easiest exhaust system to install,sounds great looks clean after installation
January 26, 2010
Finish
5 / 5
Performance
5 / 5
LOVE THEM
These were fairly easy to install; it's a two-person job but one could get it done. These pipes are clean looking and loud. They have a throaty aggressive growl and are flat out mean sounding when getting on it up through the gears. I installed the Cobra Fi2000r fuel processor (very easy to install) at the same time I put the pipes on and all together my bike is a whole new beast! I have a 2005 Suzuki C50 Boulevard
May 24, 2010
Finish
5 / 5
Performance
5 / 5
Neighbors Hate Me
The streetrods look and perfrom outstanding. They are a little too loud for my taste, I ordered some other baffles but haven't put them on yet.
The heat shields were a pain but install was overall pretty simple.
March 1, 2010
Finish
5 / 5
Performance
5 / 5
No Review Title Entered By User
I put these awsome pipes on my m50 and and they sound great and easy to install . If u r looking for a set of pipes get them.
February 15, 2011
Finish
4 / 5
Performance
5 / 5
Great pipes!
Excellent sound and easy to install. Just read the instructions a few times before you start. Use a set of 1/4 inch sockets and not a screw driver for the clamps. Think about how you will reach in to tighten clamps before you decide on which way to position clamps. Not too excited that the heat shields are a little wavy in places. Cobrausa did say that the pipes have a lifetime warranty and that they would take care of the problem. Really like to listen to the pipes as I wind out the gears!
July 28, 2010
Finish
5 / 5
Performance
5 / 5
Nice pipes
Sound incredibly better than the stock pipes on my 08 Suzuki C50. You now know that the bike is running!!
May 18, 2012
Finish
5 / 5
Performance
5 / 5
Can't go wrong
Just bought brand new 09 Boulevard C50, first day I had the bike and installed these new pipes. Not only do they look a ton better than the stock pipes but they sound phenominal, nice rumble. Easy install, directions fairly straight forward. Plus it adds an additional 3 inches in clearance for bags. I searched pretty extensively online and found Dennis Kirk to have the best pricing. I also bought the Cobra backrest and Demon gradient windshield from these guys and all look great on the bike.
March 5, 2011
Finish
5 / 5
Performance
5 / 5
Heat shields have 4 short and 2 long clamp, note.
Great pipes, great sound. Put on my '06 c50 BLVD. You will need some specialty tools to get into some tight places. Took a good 2 hours for take off and install. Make sure to note the 2 lrg. and 4 small clamps for heat shields. They go in specific places. Otherwise you'll be taking them back off to reinstall.
January 19, 2013
Finish
5 / 5
Performance
5 / 5
great sound and looks
I loved these pipes before I even got them - I've seen/heard them on bikes before. They have the deep sound I like without a lot of cracking and without any tinny sound that I did not like of other manufacturers of similar style and size (2.5 inch). But when you crank the throttle, you hear it alright. Might be too loud for some, but I have a high threshold for that. If these are not loud enough, you need to get 3 inch pipes or a bigger bike! Love the look of them, the slashdown billet tips line up perfectly. Installation was a little tricky getting the heat shield past the back bracket (the hose clamp closest to it needs to be pushed all the way to one side), but overall it was not difficult.
August 20, 2010
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Browse 1 question Browse 1 question and 1 answer
Good for 180lb rider ?
A shopper on Sep 14, 2016
BEST ANSWER: Absolutely, nice sounding and well performing exhaust.

Instructions and Manuals for Cobra 2-into-2 Speedster Streetrod Slash-Down Exhaust System - 3917

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