-Saves 10lbs over stock
-Produces 8 horsepower over the stock system
-Stock db 89 @ 5,500 rpm/ M4 db 105 @ 5,500 rpm
-M4 Suggests reflashing of the stock ecu or a fuel controller to maximize power output
-304 Stainless steel tubing with high temp ceramic coating
Please Note: M4 Recommends re-flashing your stock ECU to unleash the full potential of all M4 products.
If you would like to reduce the db levels of this M4 Exhaust System Optional Stage 1 part # Q7 Quiet Inserts are sold separately and are available for purchase from SportbikeTrackGear.com using the link found below.
M4 Exhaust Quiet Insert (Db Reducer) |
Emissions Notice to Customers in California |
Important Emissions Notice to Customers in California
The State of California prohibits the offer for sale, sale, or installation of an aftermarket part, which alters or modifies the original design or performance of a motor vehicle's pollution control devices or systems, unless the aftermarket part has first been exempted from the state's anti-tampering laws and been issued an Executive Order (EO) number by the California Air Resource Board (ARB). Legal in California only for racing vehicles which may never be used, or registered or Licensed for use, upon a highway. Any California Residents who order this M4 Exhaust from Sportbike Track Gear llc agree they are doing so with the intention of using it on a closed course as outlined within the California Notice.
Write Review
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Easy install
Only took about an hour to install, and removing the O2 sensor from the harness was the toughest part! The bike looks so much cleaner, and it's louder than I expected. I did install a Db Reducer as well, but it didn't seem to make much of a difference. Fast shipping from STG, had it in 2 days with the free shipping.
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Amazing exhaust system and install
Let me just say it sounds amazing and way better than any videos I watched about it. In person it has a nice deep growl and anything above 5k rpm’s it just sings! It definitely bring out the sound of the engine you were meant to hear with the pops and crackles and even some flames! The install was super simple and fast, especially considering I’ve never done an exhaust on a motorcycle. Literally took me maybe 45mins to remove my old exhaust and install the new one. I did have to buy anti- seize but besides that it comes with everything you need. This was exactly what I was looking and hoping for the bike to sound like! Also forgot to mention it shipped and delivered in two days! 5 out of 5!
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M4 RM1 full system
I installed this on my 2019 tracer 900 and matched up perfectly. Sounds amazing and it is extremely loud probably going to buy the db killer baffle eventually thought it might be to loud at first but after taking it for a long mountain ride I really happy with the sound and performance. Definitely needs a tune after the install though I thought it make the throttle kinda choppy now and sometimes the exhaust sounds drones out gives out an odd sound but overall really happy and shipping was very fast on it!
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2017 Fz09 M4 full system exhaust
Exhaust is loud! Which is a good thing. Install was pretty straight forward and easy to do. I gave it 4/5 because in the instructions it mentioned that anti-seize would be included but it was not. This made it an inconvenience as I had to stop the install mid way and go purchase some. Other than that, delivery was great and so was product.
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RM1 m4 full exhaust
Way better than the stock exhaust, don’t watch any videos on it to see if it’s loud or not just buy it, because in person the thing sound like a beast coming down the road and the startup is just amazing, I recommend this exhaust any day of the week
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Awesome exhaust system
I bought this exhaust system for a 2015 fz09. It was pretty easy to install. Looks great and sounds even better. The one thing left to do is tune up the bike. I would recommend this as a replacement to oem system anyday!
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Excelente exhaust
Excelente sonido y calidad
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Great Exhaust System!
I bought this for a 2015 FZ-09 and it is all around great. It looks good and sounds even better. I also bought the Q5 Stage 1 baffle and it remains loud enough to be heard (at higher RPMs) and quiet enough for early departures and late arrivals in the neighborhood.
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Freaking Loud
Ok... initial impression is 4 stars since I am still sorting the feeling and exhaust out. The exhaust has a loud, bass growl when the bike is started and just gets louder as the RPMs rise. My neighbors are going to hate me. If your neighbors like quiet, you will piss them off with this exhaust. The exhaust looks really cool on the bike.
- Availability:
- STG Part Number:
- M|M4 YA6922|0
- Manufacturer's Part Number:
- 1