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The M8 engine is a powerhouse, but a low idle combined with a plugged up exhaust conspire to mute the true sounds of freedom that this machine was designed to emit. Not to worry, S&S have created the GNX slip-ons with one thing in mind; belting out the flag waving, eagle flying song of the American V-twin.
Combining a 4.5" shell with a tuned baffle and race inspired tip, the GNX lets the sound and power flow out of the M8. Each muffler includes a removable dB reducer that lets you tune the sound to suit your version of the American dream. Made in America, the GNX features their new durable Guardian Black finish and is relieved for shocks up to 13.5".
Give your M8 a true V-Twin rumble without a full system
4.5" slip-on with premium fit, finish, sound and power
Unique louvered baffle delivers a rowdier tone, even with stock headpipes
S&S Racing heritage styled endcap in Tuxedo Black finish
SAE J2825 Sound Level Compliant (with included dB reducer installed)
CARB approved
Made in USA
Product Note:
Specification
Details
Baffles Included
Yes, Non-Removable
CARB Approved
Yes
Configuration
Dual Muffler
Country of Origin
USA
Engine Type
Varies (make selection above)
Exhaust Diameter
4-1/2 in.
Finish
Varies (make selection above)
Muffler End Cap
Black
Muffler Sleeve
Varies (make selection above)
Warranty
Varies (make selection above)
Vehicle Fitment
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
These would be great without the cat delete headers. At a steady cruising throttle they're tolerable.
Very quality product
By Dean H. on
Verified Purchaser
These slip-ons are great! They make my Street Glide Special sound so much better. When you crank the throttle, they sound incredible. Thank you.
2021 FLTRXS
By Jason on
The mufflers look and sound as advertised. The muffler clamps have an Allen head bolt. The directions say nothing about needing a 6 mm Allen head socket. Should have not followed the directions and use the original Harley muffler clamps. As one of the Allen head bolts stripped out while trying to torque down to spec.
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Verified Purchaser
