SKU: 53757849476

FMF - Factory 4.1 RCT Titanium Slip-On Exhaust w/Mid Pipe (Honda)

Sale price$273.38 Regular price$303.75
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

FMF - Factory 4.1 RCT Titanium Slip-On Exhaust w/Mid Pipe (Honda)FMF Factory 4. 1 RCT Slip On Exhaust with Mid Pipe (Honda) The FMF Factory 4. 1 RCT Slip On Exhaust brings championship level performance and craftsmanship to your Honda. Designed and hand built in FMFs Southern California factory, this system uses Resonance Chamber Technology (RCT) both internally and externally to smooth out exhaust flow, enhance throttle response, and deliver stronger power through the entire rpm range. Its the same technology

FMF – Factory 4.1 RCT Slip-On Exhaust with Mid Pipe (Honda)

The FMF Factory 4.1 RCT Slip-On Exhaust brings championship-level performance and craftsmanship to your Honda. Designed and hand-built in FMF’s Southern California factory, this system uses Resonance Chamber Technology™ (RCT) both internally and externally to smooth out exhaust flow, enhance throttle response, and deliver stronger power through the entire rpm range. It’s the same technology trusted by FMF’s top race teams, fine-tuned for real riders.

The 4.1 RCT features Factory Forward Engineering, which positions the muffler closer to the motor for improved handling and mass centralization. Its shorter overall length reduces the chance of crash damage, while the aerospace-grade titanium construction cuts weight and boosts strength. Finished in blue anodized titanium with a matching titanium end cap, it delivers a true factory look. The Rapid Tuning System (RTS) makes insert and maintenance changes quick and easy, and a USFS-approved spark arrestor screen is included for trail legality.

Why We Like It:
It’s a factory-level slip-on that feels and sounds like a full system. The titanium build, deep FMF tone, and instant throttle response make it a serious upgrade that looks just as good as it performs.

Why It’ll Work for You:
This slip-on improves your Honda’s power and throttle feel without the complexity of a full system. It’s lighter, smoother, and easier to maintain, giving you race-ready performance that still fits your everyday riding. The included spark arrestor means you’re covered for both track and trail.

Variants / Options:
Available in Blue Anodized Titanium with Titanium End Cap. Works with FMF or stock OEM headers.

Key Features:

  • FMF Resonance Chamber Technology™ (RCT) for power and sound control

  • Factory Forward Engineering improves handling via mass centralization

  • Aerospace-grade titanium construction for extreme weight savings

  • Blue anodized finish with titanium end cap for true factory style

  • Rapid Tuning System (RTS) for easy tuning and maintenance

  • Compatible with FMF or stock OEM headers

  • Includes spark arrestor screen insert (USFS-approved)

  • 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: 53757849476

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4.2 ★★★★★
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Patti J Fredley
Omaha, US
★★★★★ 5
Socks
Size: X-Large, Color: (601) Bittersweet Pink / Stone / Stone
So cute
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
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Verified Purchase
Glass
Battle Creek, US
★★★★★ 5
I stay on your foot they don’t slip in your shoe
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
This is the only socks I wear Under Armour because they stay in place I wear a size 8, but they’re more comfortable with a large instead of a medium, but I wear both because I have them already and you can pull them to stretch them out a little bit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
L
Verified Purchase
Lauren
Pawtucket, US
★★★★★ 5
Great fit, truly doesn’t slide off heel
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium, Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
I’ve scoured all the lands looking for a no-show sock that was 1) thin, 2) quality, soft, breathable material, 3) didn’t dig into my feet/heels, 4) doesn’t shrink, and most importantly 5) stays on the back of my heel without a bulky non-slip rubber piece and these check all the boxes! Perfect for low profile women’s work shoes like Keds, etc. Not low enough for most flats though. I wear a women’s size 9.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2025
E
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Elliz
Whiting, US
★★★★★ 5
So good - I’m buying MORE.
Number of Items: 3, Color: White (3-pairs), Size: Medium
I’m gonna give you more detail than you need about why I’m buying these socks again. I’ve been the mom of girl athletes. I’ve been a model and a fashion director. I’ve worn every brand of shoe on the planet and never found a shoe that did NOT find a vulnerable spot on my foot to rub raw. Even my beloved white Jack Purcell sneakers. With that said - I don’t like socks. I’ve bought a TON of them in 35+ years.....all major brands. They shift. They lose their shape. They get holes in them and wear out too fast. Not these. I retired this year, and knowing I’d be in sneakers a lot, traveling, sightseeing ...... I bought these 6 months ago and have worn them constantly. I’ve traveled with them. I’ve washed them in hot water and bleach. The socks are like brand new. They are exactly the right cut so as not to be seen in a basic sneaker. The little silicone patch on the heel stays put. Not once have I had to dig down into my shoe and pull the sock back up. The socks have stayed soft and EXACTLY the same as the day they were new. Like I said - I am back to buy them again. Great quality!
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Reviewed in the United States on January 20, 2021
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Judy Fletcher
Port Orchard, US
★★★★★ 5
No slip low socks
Number of Items: 3, Color: Black/White (3-pairs), Size: Medium
Perfect! ❤️ these!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026

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