Loading...
GROM 2022-25 Race RS-9T Stainless Full Exhaust, w/ Stainless Muffler
GROM 2022-25 Race RS-9T Stainless Full Exhaust, w/ Stainless Muffler
GROM 2022-25 Race RS-9T Stainless Full Exhaust, w/ Stainless Muffler
GROM 2022-25 Race RS-9T Stainless Full Exhaust, w/ Stainless Muffler
GROM 2022-25 Race RS-9T Stainless Full Exhaust, w/ Stainless Muffler
Product image 1GROM 2022-25 Race RS-9T Stainless Full Exhaust, w/ Stainless Muffler
Product image 2GROM 2022-25 Race RS-9T Stainless Full Exhaust, w/ Stainless Muffler
Product image 3GROM 2022-25 Race RS-9T Stainless Full Exhaust, w/ Stainless Muffler
Product image 4GROM 2022-25 Race RS-9T Stainless Full Exhaust, w/ Stainless Muffler
Product image 5GROM 2022-25 Race RS-9T Stainless Full Exhaust, w/ Stainless Muffler

*Product may vary by application

GROM 2022-25 Race RS-9T Stainless Full Exhaust, w/ Stainless Muffler

SKU: 12122AR520

Sound Insert/Spark Arrester Options


Regular price $659.00


Race Series Exhaust System



(Payment Options Available at Check Out)

Same day shipping on In Stock items placed Mon-Fri by 1:00 pm PST.

By filling out the form below you acknowledge that the item being purchased is for racing only and this vehicle will never be used on public roads or land.

FOR CLOSED COURSE COMPETITION ONLY; NOT INTENDED FOR STREET USE

The product that you are purchasing is designed and intended for closed course competition use only and is labeled as such, i.e. Yoshimura "RACE SERIES." Yoshimura RACE SERIES products are neither designed nor intended for use on PUBLIC ROADS or LAND. Such use is prohibited by Federal and State regulations.

I have read, understood, and agree to the Use Restriction Terms.


0%
Financing

FREE SHIPPING
over $100

1-YEAR
Warranty

Repair Services
Available

MADE IN USA

Emissions Compliance Declaration: QUALIFIED MANUFACTURER DECLARED "MODIFIED PART"


WARNING: Cancer and Reproductive harm - www.p65warnings.ca.gov


It's here - the third generation Honda Grom. Back in 2013, we couldn't wait for the OG model to arrive on US shores and the newest version has us with equal anticipation.

With more compression, a 5 speed gearbox and new styling, the latest generation Grom promises even more fun both on the street and at the racetrack... Yoshimura is ready.

For styling, power and clearance we developed our renowned RS-9T to perform on the third gen Grom and the results are incredible, as the new Grom responded like a champ. Our Race Series RS-9T full system adds a staggering 13.9% max HP increase and 14.3% increase in max torque. With performance like that it's safe to say the RS-9T will be on top of the track day podiums around the globe!

We didn't stop there, we designed our RS-9T to offer more ground clearance and lean angle than the previous gen model. For the cherry on top we added a matte carbon fiber end cap and heat shield - Now your new Grom will love you forever!

If your serious - it's only Yoshimura. Proudly made in the USA!

  • RS-9T muffler allows the use of 5 sound insert options to customize power delivery and sound reduction.
  • Inserts available:
    SA-15-K
    SA-14-K
    INS-RS9A-K
    INS-RS9B-K
    INS-RS9C-K

*SPECIAL FITMENT NOTE: Not Compatible with 2025 SP Models Lower Cowling as it interferes with cowling and cowling bracket.

    Sound Insert/Spark Arrester Options                 
    ​​
    Sound Level
    Volume Insert Spark Arrestor Included
    INS-RS9B-K
    No
    INS-RS9C-K
    No


    SA-15-K No 

      

    . . . . .

    This product was designed to fit on a standard equipped motorcycle, as delivered from the factory. OE and aftermarket accessories not found on a bike as delivered from the factory may not be compatible with this product.

    Attention international customers: This product was designed and tested to be compatible with vehicles in the U.S. marketplace only. Compatibility, including fitment and performance, may vary by marketplace.

    Works Finish Explained

    Open tab

    New Yoshimura Works Finish takes on a unique coloring after it goes through a heat cycle on the motorcycle that looks much like those titanium works components our factory racers use.

    • Contemporary Satin/matte finish
    • Uniform heat coloration
    • Increased fatigue strength
    • Increased scratch and stain resistance

    Vehicle Fitment

    Open tab
  • Honda GROM 2022
  • Honda GROM 2023
  • Honda GROM 2024
  • Honda GROM 2025


  • Customer Reviews

    Based on 8 reviews
    100%
    (8)
    0%
    (0)
    0%
    (0)
    0%
    (0)
    0%
    (0)
    K
    Kyle Bass
    Unbeatable

    I put the RS-9T on my otherwise stock ’23 Grom.
    Immediately there was a noticeable increase in power at lower gears and at least +6mph top speed.
    Incredible gains for just four bolts.

    A
    Anonymous
    Pleasantly surprised

    What an incredible difference when I changed to the full exhaust. Veryy easy to install on my 2025 honda grom and the sound is amazing. Make sure u don't have the belly cover on the grom. Not compatible yet like the website says. Look and sounds awesomeee!! Thx guys!!!

    R
    Robert Hamilton
    RS-9T

    I thought…a little pricey,but having bought and used yoshimura products over the years it’s gonna be worth it? And they didn’t disappoint.There is absolutely a difference between this product and any aftermarket brand.Fit,finish ease of installation and after that performance.Very satisfied with the purchase.

    J
    Jonathan Snyder

    It sounds awesome and was super easy to install.

    J
    Johnny
    Completely worth it

    Bought my 2024 Grom a week ago and next day ordered the full Yoshimura system for it and it sounds amazing I love it and makes riding more fun! Definitely recommend.

    Close (esc)

    Free Shipping

    Free Ground Shipping on Web Orders over $75.00

    *48 Contiguous States

    Age verification

    By clicking enter you are verifying that you are old enough to consume alcohol.

    Search

    Shopping Cart

    Your cart is currently empty.
    Shop now

    Race series product restriction and affirmation

    Warning:

    The RACE SERIES product you are purchasing removes, renders inoperative, or bypasses required elements of the emission control systems of EPA, certified motorcycles of motorcyle engines and may only be installed on motorcycles that are restricted to closed course competition. Installation of this product on a motorcyle that is ridden on a public street, highway, or public lands violates the tampering and defeat device provisions of the Clean Air Act & 203(a)(3)(A) and/or & 203(a)(3)(B) and may subject you to a civil penalty of up to $37,000.

    Information (Enter as Applicable)

    Race Information

    Rider/Purchaser Information

    Affirmation

    By clicking below, I affirm:
    1. that i have read the above warning;
    2. that any information I have entered is accurate; and
    3. that any motorcycle on which I install the RACE SERIES product will be restricted to closed course competition and will not be ridden on any public street, highway or public lands.