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Yoshimura RS-9 Exhaust System Honda Grom 2014
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  • Aluminum
  • Yoshimura RS-9 Exhaust System Honda Grom 2014
  • Yoshimura RS-9 Exhaust System Honda Grom 2014
  • Carbon Fiber
  • Yoshimura RS-9 Exhaust System Honda Grom 2014
  • Yoshimura RS-9 Exhaust System Honda Grom 2014

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MSRP
$395.95 - $530.95
Your Savings (18%):
$71.28
Your Price
$324.67
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Yoshimura RS-9 Exhaust System Honda Grom MSX125

The same Yoshimura exhaust system deigned for AMA Pro Supercross and Motorcross competition is now available for the Honda Grom. The RS-9's parallelogram-shaped muffler body increases muffler volume over the stock system, resulting in better throttle response and improved noise cancellation. The uniquely sculpted Carbon Fiber end-caps feature a Tunable Insert System, able to fine-tune power delivery and decibel levels to rider specifications.

Features:

  • Polished 304-L Stainless Steel
  • Lightweight laser cut rivet-bands
  • Premium quality closed-end rivets reinforced
  • Made In USA

Note: Please check local laws before purchasing. Some modifications may be prohibited in some states.

For more information on this Yoshimura Exhaust, please read our Yoshimura vs. Leo Vince article!

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This Product Fits:
Honda
Grom MSX125 2014
Write a Product Review for a chance to win our monthly $100 giveaways.
Yoshimura RS-9 Exhaust System Honda Grom 2014 5 5 3 3
Great look, great sound I bought the carbon fiber Yoshimura Full Exhaust and couldn't be happier. It looks great, sounds awesome, and gives me a little extra performance to play with. All in all, it was a great purchase and one that I would make again if I had to. July 28, 2014
Most refined sound from a Grom Couldn't be easier it install! Did it in the entrance way of my 600sq.ft apartment. There are cheaper systems out there but this one looks like a million bucks. And the sound is super refined; not ridiculous. Serious performance gains particularly when you do a ram air intake as well. July 7, 2014
awesome looks fantastic and sounds mean, its not overly loud either Sounds great and is not too loud. The carbon fiber looks fantastic. Delivery was fantastic and fast. June 12, 2014
1-3 of 3
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Have a functionality, fit, or otherwise product-specific question about the Yoshimura RS-9 Exhaust System Honda Grom 2014? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

Yoshimura RS-9 Exhaust System Honda Grom 2014
Already Asked: 4 Questions, 6 Answers
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RevZilla Store asked: Why did you choose this?
simas k: Sounds awesome and looks great. Dec 16, 2013
Christopher A asked: Does this include the header pipe? May 25, 2014
Answer this · Send to friends Good question? Yes (2) No (0)
A shopper asked: Do I need to purchase a fuel injection controller with the full system on a 2014 grom? Mar 10, 2014
Answer this · Send to friends Good question? Yes (0) No (0)
Michael A: I called Yoshi and they told me no. Bike seem to run just fine since I installed it Mar 10, 2014
Reply to Michael Good answer? Yes (1) No (0)
M E: I never used a fuel injection controller and my bike runs great. I have the carbon full system. I noticed a fair amount of power gain at low rpms. When I first installed my exhaust I lost a couple mph top end ( literally 2mph) but the bottom end gain was a fair trade. Over time though, the top end came back. The sound is great! Mar 11, 2014
Reply to M Good answer? Yes (0) No (0)
Scott W: No you do not. I installed mine and have ridden almost 1000 miles with it on the stock fuel map. The ECU will make minor adjustments to the engine to accommodate the better exhaust flow. Unless you are adding a big-bore kit or significantly changing the engine, you will be fine. Mar 10, 2014
Reply to Scott Good answer? Yes (0) No (0)
ENRIQUE B: I installed this system in my 2014 Honda Grom and there is no need to add a fuel injection controller , I only add it a air filter and it runs awesome Mar 10, 2014
Reply to ENRIQUE Good answer? Yes (0) No (0)
A S: Thanks all who replied. I got the full carbon system and will be putting it on tomorrow. Mar 15, 2014
Reply to A Good answer? Yes (0) No (0)
A shopper asked: What is the recommended torque to tighten the pipe? Aug 31, 2013
Answer this · Send to friends Good question? Yes (0) No (0)
Product Style RevZilla Item # Manufacturer Product # Availability
Aluminum / Full System 907305 121200H320 In Stock: Ships within 24 hours
Carbon Fiber / Full System 907302 121200H220 In Stock: Ships within 24 hours