The M4 2015 Yamaha R1 Street Slayer Slip On Exhaust System eliminates 14.5lbs as compared to the stock canister and catalyst. As we have come to expect with M4 the exhaust note is nothing short of wicked! The MC36 canister has a full carbon sleeve and the Signature M4 Carbon End Cap.
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.
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| 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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Perfect fit, easy install
The M4 street slayer exhaust, in my opinion was a good buy. It definitely increased the performance of the bike, the look is absolutely great and the install takes less than 20 minutes to complete. There’s no issue trying to maneuver anything around to get it to fit. And the sound is amazing not to loud and obnoxious as other pipes would make it. Definitely worth it getting this pipe
- Availability:
- STG Part Number:
- M|M4 YA9944|0
- Manufacturer's Part Number:
- 49
