SKU: 59597831354

Yoshimura - RS-12 Full System (Yamaha)

Sale price$400.93 Regular price$445.48
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

Yoshimura - RS-12 Full System (Yamaha)Yoshimura RS 12 Full System (Yamaha) After more than two years of factory level development and race testing, the Yoshimura RS 12 Full System brings pure championship DNA straight to your Yamaha. Every detail was built for performance from the aggressive asymmetrical muffler design that increases volume and flow, to the matte carbon fiber end cap and precision machined joints that make this system both functional and beautiful. The RS 12 was

Yoshimura – RS-12 Full System (Yamaha)

After more than two years of factory-level development and race testing, the Yoshimura RS-12 Full System brings pure championship DNA straight to your Yamaha. Every detail was built for performance — from the aggressive asymmetrical muffler design that increases volume and flow, to the matte carbon fiber end cap and precision-machined joints that make this system both functional and beautiful.

The RS-12 was engineered for maximum gains in power, throttle response, and durability. Its tapered inlet design moves the system closer to the bike’s center of gravity, improving handling and balance. The result? A system that adds power while trimming weight and giving your Yamaha that deep, tuned Yoshimura tone. The patent-pending Precision Taper Fit (PTF) insert ring makes swapping out inserts or spark arrestors quick and simple — no frustration, no struggle, just track-ready performance and pro-level refinement.

Why We Like It:
It’s everything a Yoshimura system should be — race-proven, lightweight, and flawless in both sound and craftsmanship. The carbon fiber end cap, tight welds, and sculpted lines make it look factory fresh, while the tone and power feel straight off the Supercross circuit.

Why It’ll Work for You:
This system makes your Yamaha feel stronger everywhere — quicker throttle pickup, smoother pull, and noticeably better response through the revs. The improved weight balance helps the bike feel lighter and more stable, while the carbon cap and titanium finish add that unmistakable Yosh look. It’s plug-and-play performance that transforms how your bike rides and sounds.

Variants / Options:
Includes full stainless header and mid-pipe assembly. Compatible with Yoshimura repack kits, sound inserts, and spark arrestors (sold separately).

Key Features:

  • Developed and race-tested for over 24 months by Yoshimura’s factory team

  • Asymmetrical RS-12 muffler design increases power and volume

  • Carbon fiber end cap with inset decal and precision-machined joints

  • Tapered inlet improves mass centralization and fitment

  • Patent-pending PTF insert ring for easy sound insert or arrestor changes

  • Improved throttle response and mid-top power gains

  • Lighter than stock (8.5 lbs. vs 8.7 lbs.)

Made in the USA with Yoshimura’s signature craftsmanship

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: 59597831354

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4.3 ★★★★★
Based on 28 reviews
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Product Reviews
J
Verified Purchase
Joe H.
Lake Worth, US
★★★★★ 5
Very Expensive
Had one cylinder misfiring so replaced coil and spark plug. Runs fine now, but old plug looked shot after only 5 months so I think the coil was the problem. Really good plug so far but very expensive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
R
Verified Purchase
rkab8745
Louisville, US
★★★★★ 5
A reliable set of spark plugs.
They’re made in Germany, what else can you say
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
A
Verified Purchase
Amazon Customer
Omaha, US
★★★★★ 5
Work as well as the NGK's
Bought for a 2016 Mazda 6, I had NGK's in it for 5 months and had misfires, didnt have the money to throw more NGK's at it for troubleshooting. Bought these to try and they work great so far.
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Reviewed in the United States on April 29, 2026
C
Verified Purchase
Christopher D. Bodirsky
Boise, US
★★★★★ 4
Faulty plug? Otherwise great set
Definitely better than the old plugs that probably had 80k miles on them. The one star off is because I had a misfire after installing. Not sure if I damaged the plug or what, but a reinstall didn't fix the misfire. In my genius, I rushed to try to gap it and ended up breaking the iridium tip. Put the old plug into cylinder 3 (where the misfire was) and it was fine. Gonna have to get a new single tomorrow at my local shop, but a bit frustrating to get a misfire after install.
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Reviewed in the United States on April 27, 2026
B
Verified Purchase
Britincali
Alexandria, US
★★★★★ 5
Upgrade from OEM
After seeing a quite ludicrous $403 quote to change 4 spark plugs in a Mazda3 I decided to show my son how easy it is. These were an upgrade from OEM parts. They were gapped perfectly for the car. They took 20mins to fit and work fine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026

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