SKU: 40639748632

FMF - Factory 4.1 RCT Complete System (Kawasaki)

Sale price$18871.20 Regular price$20968.00
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

FMF - Factory 4.1 RCT Complete System (Kawasaki)FMF Factory 4. 1 RCT Complete System (Kawasaki) The FMF Factory 4. 1 RCT Complete System brings championship level performance, power, and precision engineering to your Kawasaki. Designed with FMFs exclusive Resonance Chamber Technology (RCT) both inside and out, this system smooths exhaust pressure, boosts power across the rpm range, and cuts sound levels all while delivering that crisp, unmistakable FMF tone. FMFs Factory Forward Engineering moves

FMF – Factory 4.1 RCT Complete System (Kawasaki)

The FMF Factory 4.1 RCT Complete System brings championship-level performance, power, and precision engineering to your Kawasaki. Designed with FMF’s exclusive Resonance Chamber Technology™ (RCT) both inside and out, this system smooths exhaust pressure, boosts power across the rpm range, and cuts sound levels — all while delivering that crisp, unmistakable FMF tone.

FMF’s Factory Forward Engineering moves the muffler closer to the motor, centralizing mass for improved balance and handling. The shorter overall length helps prevent crash damage, while the patented canister shape increases internal volume, allowing more sound-absorbing material without restricting flow. Built entirely from aerospace-grade materials and handcrafted in Southern California, the Factory 4.1 RCT is made to perform, look, and sound like a true factory system.

Why We Like It:
It’s FMF’s top-shelf system for good reason — lighter, stronger, and noticeably more responsive. The titanium build and carbon end cap look straight off a race bike, and the sound is pure FMF: clean, deep, and aggressive without being obnoxious.

Why It’ll Work for You:
This system gives your Kawasaki more usable power and a smoother throttle feel from low rpm to wide open. The improved flow helps the engine breathe easier, while the mass-centralized design keeps the bike stable and responsive. Plus, the included 94dB insert lets you fine-tune sound for different tracks or trails.

Variants / Options:
Includes complete header, mid-pipe, and muffler assembly. Compatible with optional spark arrestor and tuning inserts.

 

Key Features:

  • Latest FMF Resonance Chamber Technology™ (RCT) for balanced flow and power

  • Patented core shape lowers sound without sacrificing output

  • Patented canister design increases internal volume and durability

  • Factory Forward Engineering improves mass centralization and handling

  • Titanium and carbon fiber construction for strength and weight savings

  • Innovative rear end cap for easy insert and spark arrestor changes

  • Tuned core specs for each specific model application

  • Includes 94dB insert for sound compliance

  • Handcrafted in Southern California, 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: 40639748632

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4.6 ★★★★★
Based on 25 reviews
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B
Verified Purchase
Brenda C.
Natrona Heights, US
★★★★★ 3
Dogs not interested
Size: Large/Giant (1 Count)
My two labs do not care for this one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 29, 2023
P
Verified Purchase
PurpleBookDragon
Lexington, US
★★★★★ 5
LOVE BARK TOYS!!!
Color: Rad Herring - Medium
I got this toy for my 1yr old Husky/Heeler/(possibly)GSD (approx 42lbs) mix when she came to our home mid/late October of 2025 and the toy lasted until December 3rd 2025 when we had to assist her with opening the fabric to get the toy on the inside. It was a great fun toy for her and the inside toys still is and she loves playing with it. The durability of both the outside and inside toys are great for super chewers! I was glad there was no stuffing because I had gotten her a plush toy once before and she destroyed that immediately. The fabric on this was durable enough to withstand her chewing yet soft enough that it didn’t hurt her teeth. The colors were vibrant and fun for both toys even though wear and tear kinda took some of the fabric color away. I would definitely buy this again once the inside toy is no longer safe for her, especially since the size was perfect for her too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
A
Verified Purchase
ali
New York, US
★★★★★ 5
Good ball for strong chewers
Color: Cheeze Brawl - Large, Color: Cheeze Brawl - Large
My dog loves this ball except the outside fur gets gross really quickly. However, it’s easy to cutoff and underneath is a strong squeaky ball. It’s like two gifts in one. He’s a very heavy chewer and the ball lasts quite a bit.
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Reviewed in the United States on December 31, 2025
A
Verified Purchase
Ashton Gibson
Cuba, US
★★★★★ 5
Take the skin off and get the right size for your dog’s weight!
Color: Panda Bear - Large, Color: Panda Bear - Large
This review is specifically for the panda toy. My dog is a super chewer and will literally go through any normal toy, even the ones labeled for aggressive chewers, within a few hours at most. He’s about to be 10 years old and this is the first time he’s ever had a toy that lasted as long as it has. I wanna mention the outer layer he almost immediately chewed through. To me, it wasn’t worth the fear of him dealing through pieces so I just took the whole “skin” off. However, he’s safely had this for 2 months with no issues and heavy daily chewing until he finally broke it apart. So if you have a super chewer, make sure to get the size appropriate for your dog’s weight and take the “skin” off and you’re left with a quality toy that will stick around! Pictured is a set of 2 new toys of the same variety since he finally chewed through his last batch lol
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
K
Verified Purchase
Kit
Phoenix, US
★★★★★ 4
My dog loves this toy but…
Color: Grey Bear - Large
This toy has many pros and cons, but it’s my dogs all time favorite toy so I have to give it 4 stars. Pro:My German Shepard loves this toy, it has no squeaker and she hates squeakers, so she hasn’t tried to destroy it. It’s the perfect size for a large ball. She likes to throw her toys and this one has a pretty decent bounce to it so she can entertain herself. Cons: the inside is hard rubber, she likes to throw her toys and it hurts when she hits you with it or drops it on your feet. Also a huge hazard to windows and anything breakable.
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Reviewed in the United States on July 12, 2025

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