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S&S Cycle 4.5
S&S Cycle 4.5
S&S Cycle 4.5
S&S Cycle 4.5
S&S Cycle 4.5
S&S Cycle 4.5
S&S Cycle 4.5
S&S Cycle 4.5
S&S Cycle 4.5
S&S Cycle 4.5
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Made in U.S.A.
6 Reviews

S&S Cycle 4.5" GNX Black Slip-On Mufflers

$427.46
$474.99

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J&P Part #:  540-2736
Mfr Part #:  550-0990

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S&S Cycle 4.5
S&S Cycle 4.5" GNX Black Slip-On Mufflers

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S&S Cycle 4.5

S&S Cycle 4.5" GNX Black Slip-On Mufflers

$427.46
$474.99
Order in the next to ship today

Product Details

Description

Description for S&S Cycle 4.5" GNX Black Slip-On Mufflers

The M8 engine has various pros versus the prior Twin Cam engine, however there are a few cons that have surfaced such as the low idle note combined with a choked stock exhaust system that doesn't allow the sound most are used to. S&S Cycle has heard the customers and created the GNX slip-on mufflers. This pair of mufflers combine a 4.5" muffler body equipped with a tuned baffle and finished off with their race inspired end cap, letting the sound and power flow as it should.

• Black finish matches OEM heat shields

• dB reducer installed but can be removed

• Unique louvered baffle

• Fits with 13.5" rear shocks

Read More
S&S Cycle 4.5
Specifications

Product Specs for S&S Cycle 4.5" GNX Black Slip-On Mufflers

Baffle:
Included
Color:
Black
End Cap Color:
Black
End Cap Or Tip Color:
Black
End Cap Or Tip Material:
Aluminum
End Cap Or Tip Style:
Straight Cut
End Cap Or Tips Finish:
Black
Heat Shield:
Not Included
Manufacturer Part Number:
550-0990
Muffler Color:
Black
Muffler Diameter:
4-1/2"
Muffler Finish:
Black
Muffler Style:
Straight
Sold in Units:
Pair
Warehouse Part Number:
1344103
Fitment

Fitment Questions?

With over 750 years of experience combined, our tech staff has the answers!

  • Harley-Davidson®

    • Touring Electra Glide Police FLHTP : 2017–2020
    • Touring Electra Glide Standard FLHT : 2019–2020
    • Touring Electra Glide Ultra Classic FLHTCU : 2017–2019
    • Touring Road Glide CVO FLTRXSE : 2018–2019
    • Touring Road Glide FLTRX : 2017–2020
    • Touring Road Glide Limited FLTRK : 2020
    • Touring Road Glide Special FLTRXS : 2017–2020
    • Touring Road Glide Ultra FLTRU : 2017–2019
    • Touring Road King FLHR : 2017–2020
    • Touring Road King Police FLHP : 2017–2020
    • Touring Road King Special FLHRXS : 2017–2020
    • Touring Street Glide Anniversary FLHX : 2018
    • Touring Street Glide CVO FLHXSE : 2017–2020
    • Touring Street Glide FLHX : 2017–2020
    • Touring Street Glide Special Anniversary FLHXS : 2018
    • Touring Street Glide Special FLHXS : 2017–2020
    • Touring Ultra Limited Anniversary FLHTK : 2018
    • Touring Ultra Limited CVO Anniversary FLHTKSE : 2018
    • Touring Ultra Limited CVO FLHTKSE : 2017–2020
    • Touring Ultra Limited FLHTK : 2017–2020
    • Touring Ultra Limited Low FLHTKL : 2017–2019
Product Notes

Important Product Notes

Note: Please see U.S. EPA and your respective state and local regulations to confirm noise and emission compliance.

Important Exhaust Notes:

• Note: With any new exhaust, we recommend changes to carburetor jetting or use of an aftermarket fuel injection control module.

• There is no warranty on exhaust pipes and mufflers with regard to any discoloration. Blueing is caused by tuning characteristics, cam timing, carburetor jetting, overheating, etc. and is not caused by defective manufacturing. No refunds on exhaust pipes once motorcycle is started unless there's a manufacturer's defect.

California Prop 65 WARNING - Cancer, Reproductive Harm - www.P65Warnings.ca.gov

Shipping Note

Due to state regulations we cannot ship this item to the state of California for some motorcycles.

Ratings & Reviews

Help Customers Understand This Product

4.8
6 Reviews
Rating Breakdown
5 stars
5
4 stars
1
3 stars
0
2 stars
0
1 star
0
October 13, 2020
Amazing sound! Received on time and in great shape. I love the way my bike sounds now, thanks J&P!!
-W. Watts
September 24, 2020
Perfect rumble. Just what I was looking for. Package arrive intact and on time.
-JANET
September 8, 2020
I must be honest I was concerned that they were going to be too loud for my taste even with the DB's installed. Nothing could be further from truth, these pipes were supper easy to install took me maybe 20 minutes. And the sound is awesome, they have a deep rumble that those I have ridden with so far have all complimented on. They look fantastic as well, I highly recommend for any one thinking of changing their stocks. I ride a 2019 Road Glide Special and I have only changed the slip on mufflers and they have added another 5-10 mph to the bike.
-JAMES
July 28, 2020
Good sound and good performance only took me 20 minutes to install
-JAMES
July 1, 2020
Insulation was a breeze, throw away the DB reducers. Sounds fantastic on my 19 RKS.
-DARREN
June 27, 2020
The pipes look and sound great. Slight issue with fitting, L side slides on further than the R.? Not sure if that’s by design/not. I had to really crank down on those bolts for it to tighten up & match both tailpipes. Only true issue was with J&P since they took 3+ weeks before they even shipped them to me..?!
-MICHAEL

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S&S Cycle 4.5
S&S Cycle 4.5
S&S Cycle 4.5
S&S Cycle 4.5
S&S Cycle 4.5
S&S Cycle 4.5
S&S Cycle 4.5
S&S Cycle 4.5
S&S Cycle 4.5
S&S Cycle 4.5
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