The STG Difference Free Domestic Shipping For Orders Over $99 Hassle Free Returns No Restocking Fees Price Match Guarantee Customer Rewards, Earn STG Cash

M4 Kawasaki Ninja 400 18-23 Full Exhaust X96 Carbon Canister

Click to see 12 more pictures
$749.00 $712.00
(You save $37.00)
M|M4 KA4024|0

Customer Service

  • 888.784.4327
  • Monday-Friday
  • 10am to 6pm EST
  • Saturday
  • Closed
  • Free Domestic Shipping for Orders over $99Any domestic order (lower 48 United States) over $99.00 ships for free! If your item isn't over $99 but your total cart value is, you'll qualify for free shipping as well! For more information on our Shipping Policies, click here.
  • Hassle Free Returns No Restocking FeesHere at STG we want any return or exchange to be quick and pain-free. You can contact anyone here to expedite your return or exchange and we'll make sure it's handled ASAP. For more information on our policies, click here.
  • Price Match GuaranteeFind a better price? If you have we will match it! Call us at 888.784.4327 or submit a request here and our team will make it happen. *Some exclusions may apply.

Frequently Bought Together

Please choose Options for all selected Products

  • Choose Options

The M4 Kawasaki Ninja 400 Full Exhaust System takes the performance of the 400 to the next level, we could feel the difference in power after installing it on the very first ride. With this system there is a weight savings of 5.9 lbs, (Stock System 13.15 lbs.) vs. (M4 Full System 7.25 lbs.) which helps to lower the already light weight a bit. To mount the canister M4 includes a carbon strap and a race mount bracket with this system if you would like to remove the rear passenger pegs, installation of this bracket is optional if you prefer to keep the passenger pegs on the bike. To round it all off this system looks and sounds great on the Ninja 400. Watch our STG Video Install to hear how it sounds as compared to stock and get a closer look at the final result.

  • X-96 Carbon Fiber Canister
  • Saves 5lbs over stock
  • Comes with race bracket and rear brake reservoir relocation bracket
  • Comes with M18 02 bung for use of aftermarket fuel controllers
  • Stock db is 87 @ 6,000 rpm / M4 db is 99 @ 6,000 rpm
  • 10% increase in performance

M4 Exhaust - Additional Information:

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.

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.