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M4 Kawasaki ZX-6R 09-26 Carbon Street Slayer Slip On Exhaust

(14 reviews) Write a Review
STG SKU:
M|M4 KA6914|0
$428.00
$406.00
You save $22.00
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Full Systems - For the ultimate in performance, complete tuned stainless steel systems include all mounting hardware. Optional mounting styles and materials available for select systems.

Bolt On/Slip Ons - These systems utilize the stock header assembly. Bolt on and slip ons replace the stock restricted muffler resulting in better sound and an increase in power.

Headpipe/Collector Assembly - Full systems include tapered and equal length headpipes with true high-flow merge collectors.

Silencer - M4 silencers look as good as they perform. Polished steel, titanium, black satin and carbon fiber silencers are offered to suit your style.

Midpipe - Careful design of the midpipe is necessary to give exhaust gasses optimum flow and improved power characteristics.

If you would like to reduce the db levels of this M4 Exhaust System Optional Stage 1 part # Q5, Stage 2 part # Q4 Quiet Inserts are sold separately and are available for purchase from SportbikeTrackGear.com using the link found below.

M4 Exhaust Quiet Insert (Db Reducer)

M4 Exhaust Quiet Insert (Db Reducer)

Emissions Notice to Customers in California

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

  • 5
    M4 Kawasaki ZX-6R 09-26 Carbon Street Slayer Slip On Exhaust

    Posted by Luis Sanchez on 27th May 2026

    I installed the M4 Kawasaki ZX-6R 09-26 Carbon Street Slayer Slip-On Exhaust and it's a fantastic upgrade. The weight reduction is noticeable, and the sound is incredible — it truly makes the bike come alive. Quality & Looks: Carbon fiber construction looks amazing and feels premium. Top-tier build quality that matches the ZX-6R perfectly. Flexibility: Comes with a silencer that can be removed easily for louder sound or track days. ⚠️ Important Tip: Buy the Exhaust Servo Buddy along with this exhaust — it prevents the error code from showing on your screen without any extra bike modifications. It also lets you save even more weight by removing the servo motor. Worth every penny! Pros: Significant weight reduction Amazing sound that brings the bike to life Premium carbon fiber quality and looks Silencer included and removable easily Get the Servo Buddy — no error codes, no extra work, more weight savings Cons: None — perfect upgrade for the ZX-6R Bottom Line: Excellent slip-on exhaust that transforms the ZX-6R's sound and feel. Don't forget the Servo Buddy to avoid dashboard codes. Highly recommended!

  • 5
    M4 slip on.

    Posted by Dow Cross on 19th Nov 2025

    Installed the M4 slip on today. It was pretty easy. I fired up the ZX6R and at idle the M4 isn't bad for noise. Things change when you start accelerating but still not too bad until you start hitting the high RPM's. The ZX6R experience pops and bangs when letting off the throttle in lower gears. But still not too bad. Anyhow I didn't notice any noticeable changes in temperature, idle, or performance. I checked for any exhaust leaks there were none. I will be checking on my gas mileage for any changes. I also left the baffle in. But I will try it without the baffle. But not right now. ?️?

  • 4
    M4 street slayer

    Posted by Tyree on 14th Mar 2025

    Great quality exhaust excellent finish but very loud

  • 5
    Street Slayer

    Posted by Elliott on 30th Dec 2022

    This item arrived very quickly. Great sounding exhaust!

  • 5
    Zx6r m4 street slayer

    Posted by Dan on 8th Sep 2022

    Great exhaust, great sound. Love it.

  • 5
    Slip on

    Posted by Rachael on 31st May 2022

    Absolutely one of the best purchases ever!! Sounds amazing. AMAZING

  • 5
    Awesome

    Posted by Johnny Aguirre on 5th Sep 2021

    I love it. It looks great and sounds amazing. I did leave the the baffle in.

  • 5
    M4 Street Slayer slip on(21' ZX6R

    Posted by Tony on 19th Aug 2021

    This slip on is nothing short of amazing. Easy to install and the fit and finish is great. The sound once the DB killer is removed is on par with a full exhaust. The only con is it does take about 5 weeks to be delivered once ordered but it's definitely worth the wait. As always, STG and the team made for a flawless transaction with updates on ESD.

  • 5
    Amazing!

    Posted by Kyle St Andre on 23rd Jun 2021

    Looks fantastic, provides significant weight savings, easy installation, and produces an aggressive exhaust note without being ridiculously loud. SO much better than the bulky, quiet, stock exhaust!