Fits Suzuki Hayabusa Model Years: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
NOT FOR SALE IN CALIFORNIA - NO EXCEPTIONS
Q: Why should I purchase an M4 exhaust system?
A: The simplest way to gain performance is with an aftermarket exhaust.
At M4 we take the time to make sure the performance gains you get are the best possible. We won't feed you unrealistic or impossible numbers. You will get a real performance exhaust system, with horsepower and torque increases all thru the RPM range.
Q: Do I need to re-jet or re-map?
A: It is not absolutely necessary to re-jet or re-map after installing a new M4 system. Your bike will run fine if you don't. In most cases, however, the ride and performance will be enhanced with optimal jetting and mapping.
Q: What does a M4 exhaust sound like?
A: Well to be honest, most aftermarket systems sound pretty much the same. Some have a deep sound and some, after a few miles, have a raspy sound.
We feel our systems have a deep, mellow sound. Most systems are around 92 to 98db's.
If you run your rpm up to the rev limiter the db's may go as high as 100 to 102db's.
Q: Are M4 systems street legal?
A: No, there are no aftermarket exhaust systems that are street legal in the U.S. market. M4 systems are designed for closed course racing.
NOT FOR SALE IN CALIFORNIA - NO EXCEPTIONS
RETURNS / EXCHANGES:
New and unused items may be returned if they are accompanied with an RA (Return Authorization) number and a copy of the original invoice. If you have a question about the product you purchased or its installation, DO NOT START THE MOTORCYCLE. Contact us or M4's tech support FIRST.
Once a system or product has been used or modified, it cannot be returned for credit or exchange. ANY INSTALLATION MARKS OR SMELL OF EXHAUST FUMES WILL VOID THE RETURN.
We are a full-line M4 dealer - we are here to help!
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