SKU: 15307359436

FMF - Q4 Hex Slip-On Muffler (Honda)

Sale price$140.40 Regular price$156.00
Save 10%

Pay in installments of $39.00 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 28 - Aug 2

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

FMF - Q4 Hex Slip-On Muffler (Honda)FMF Q4 Hex Slip On Muffler (Honda) The FMF Q4 Hex is FMFs benchmark for quiet performance exhaust, built for riders who want real gains without blowing past sound limits. Using a system of internal chambers, baffles, and multistage packing material, the Q4 delivers one of the best balance points between power and low noise of any off road muffler on the market. Its lighter than stock, built to take abuse, and comes with a spark arrestor already

FMF – Q4 Hex Slip-On Muffler (Honda)

The FMF Q4 Hex is FMF’s benchmark for quiet-performance exhaust, built for riders who want real gains without blowing past sound limits. Using a system of internal chambers, baffles, and multistage packing material, the Q4 delivers one of the best balance points between power and low noise of any off-road muffler on the market. It’s lighter than stock, built to take abuse, and comes with a spark arrestor already installed — ready for trails, parks, and anywhere sound requirements matter.

Why We Like It

We like it because it adds usable power in the low to mid range, which makes a real difference when you’re driving out of corners or working through tighter, technical terrain. It also drops some weight compared to stock, and the lower decibel output keeps the bike quiet and smooth without killing performance.

Why It’ll Work for You

This slip-on gives you better throttle response right where you use it most — from initial crack to midrange pull. That helps with acceleration out of turns, climbing hills, and staying controlled in rocky or slow-speed sections. It’s quieter than stock, lighter, and bolts on easily with the spark arrestor already in place, so it fits both trail rules and daily riding needs without extra effort.


Key Features

• Adds power throughout the rpm range, especially low to mid
• Meets USFS and FIM World Enduro sound regulations
• Spark arrestor included
• Lightweight design compared to stock
• Rugged construction built for off-road use
• FMF quiet-performance technology
• Made in the USA

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 15307359436

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 11 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
T
Verified Purchase
Teresa A. Patterson
Charlottesville, US
★★★★★ 5
Quiet your vehicle noises
Size: 50 sqft
Put this in our high roof van and couldn’t believe how much quieter it was at once. Really cut down on the vibration noise Nice and easy to install just peel n stick. Was also easy to cut with scissors for smaller areas. Seemed to be really nice quality. Didn’t notice any odor.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
S
Verified Purchase
Stephanie
San Leandro, US
★★★★★ 5
Sound deadening the Hot Rod
Size: 20 sqft, Size: 20 sqft
Works well, good value for the money. It’s very sticky and conforms to what you are applying it to. One 20 sq ft box did approximately the passenger side
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
M
Verified Purchase
M. Del
Alexandria, US
★★★★★ 5
Good stuff
Size: 50 sqft, Size: 50 sqft
Good stuff. I did a lot of work on my 91 Toyota Land Cruiser 3FE. I did the inside and outside doors, as well as the under-hood area, with some extra work. I like this stuff. It sticks down good but you have to clean your surface so there's a good grip. I think these are going to do well for noise cancellation. The deadening material does well with absorbing vibrations too. But the install roller tools it will come in handy. Trust me trying to do it by hand is not worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
C
Verified Purchase
Charlie J
Natrona Heights, US
★★★★★ 4
Good quality
Size: 10 sqft
I wish it was a little better but it definitely works great and look good for how cheap it is
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026
R
Verified Purchase
R. Selberg
Birmingham, US
★★★★★ 5
Works well
Size: 10 sqft
Worked great at a budget price. I used it to damp a fiberglass loudspeaker horn. Easy to work with too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026

recommand products