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 17 - Jul 22

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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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4.1 ★★★★★
Based on 9 reviews
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M
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Mari Sned
Charlottesville, US
★★★★★ 4
Most favorite
Color: Red, Size: Medium
My fur babies love these balls they are their favorite. Any size dog can play with it because of how it's made. it easy to play with. It's made with a lot of opening and is made of a soft rubber. My Shepherd pup and Boston's love to play with it, and I had to buy 3 so they don't fight over it. The giggler will break easy and even the first day on rough riders, but they can still enjoy the ball itself even without the giggler. It size is about 4in. If Amazon gave halves Id give it a 3.5 because of the giggler breaking so easily but otherwise my girls still love this ball.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
T
Verified Purchase
TLBMorgan
Natrona Heights, US
★★★★★ 5
My boy loves it!
Color: Red, Size: Medium, Color: Red, Size: Medium
This is my frenchies new favorite toy!! He loves the sounds and it seems very durable. Would recommend!
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Reviewed in the United States on May 11, 2026
M
Verified Purchase
MGW
San Leandro, US
★★★★★ 5
Wonderful toy, but for most dogs it's a toy you play WITH dog, not a chewie
Color: Red, Size: Medium, Color: Red, Size: Medium
I'm a dog trainer, and have shared my life with many dogs. For the current mini aussie, toys are a necessity and a lifeline. He is tough on toys, and we have certainly tossed many many MANY ruined toys. This toy is wonderful: the squeak is fabulous, it bounces great, it's easy to carry around, and great for fetch and a little tug. Love it, and so does he. But it's soft rubber, so it's a toy to be played JOINTLY with... not a chewie. It will create a lot of fun times and silly entertainment and exercise, but I will put it away when I am not closely monitoring and involved with the play. One of the photos is blurry but shows that the rubber is soft.
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Reviewed in the United States on January 9, 2026
A
Verified Purchase
Andrew
Natrona Heights, US
★★★★★ 3
Stops giggling after a few weeks
Color: Red, Size: Medium
I have bought three of these Giggler toys. The dogs absolutely LOVE this giggler toy and it's irresistible to them, even more so than squeaky toys. The rubber is soft and flexible, and after weeks of tug-o-war between dogs, the rubber has stood up well and is showing no sign of breakage. However in two of the toys, the giggler mechanism has started to fail and barely makes any noise at all. The dogs have lost interest in them.
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Reviewed in the United States on August 15, 2024
A
Verified Purchase
Amazon Customer
Alexandria, US
★★★★★ 5
A winner!
Color: Red, Size: Medium
Our pembroke welsh corgi’s favorite toy. We ended up getting him a second one. One for inside. The other, outside. Great for tug-a-war, fetch, and just chewing on. I can recommend this all day long.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026

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