Awesome product, light weight looks awesome changing colors when heating up and sounds like a beast, it definitely is a head turner.
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Titanium Catalytic Converter Eliminator removes 13 lbs as compared to the stock set up. It will work with stock muffler, or any aftermarket muffler that mounts in Standard/Stock position and has the same inner diameter as the stock canister.
Note: Installation of this system eliminates the catalytic converter. This system is intended for closed course use. M4 Recommends re-flashing your stock ECU to unleash the full potential of all M4 products on the 2015 and up Yamaha R1.
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.