M4 Exhaust Suzuki GSXR1000 2017-21 GP FULL SYSTEM STAINLESS tubing BLACK muffler

Description

M4 Exhaust for Suzuki GSXR1000 GP Mount full system with Stainless steel tubing and Black Ceramic muffler. FREE SHIPPING in the continental US!
Fits Suzuki GSXR1000 Model Years: 2017, 2018, 2019, 2020, 2021
Removes Catalytic Converter and SET Valve
Stock 93db@ 7,000 rpm/ M4 db 113 @ 7,000 rpm
Saves 11.6 lbs over stock system
Includes M18 and M12 O2 bungs
Stock Max Horsepower 171.42 @ 12,760 rpm/ M4 Max Horsepower 176.55 @ 12,780 rpm
(All dyno numbers are on bone stock motorcycle with Pump gas)
Suggested Retail: 75
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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