*Used* M4 Titanium WORKS Full System Exhaust with Carbon Fiber Muffler – Yamaha R3

Original price was: $998.00.Current price is: $650.00.

*This system was installed on a bike and used for testing.  It has some scratches on the bottom of the midpipe from tipping over in a gravel trap, but is otherwise in very good condition.


The M4 Full System outperformed all other systems for the Yamaha R3 in our dyno tests.

Full dyno test results can be found here:

dyno testing thumb

*M4 Full Exhaust Systems are intended for closed course race use only.  CA Customers must provide a current racer’s license or proof of enrollment in a New Racer’s School.

Out of stock



M4 has gone to great lengths to make sure their full system exhaust for the R3 is better than the competition. In fact, all and NortonFab Motorsports team bikes feature M4 full system exhausts because they were the best exhausts we tested.  Now, M4 Exhaust has stepped up their game once again with the Full Titanium WORKS exhaust system for the Yamaha R3.  We tested this full titanium exhaust as soon as it was available and results were excellent.  This is now our standard exhaust for all MotoAmerica Junior Cup Spec. builds as well as any customers looking for the best and lightest exhaust available.

The M4 Titanium WORKS full system exhaust weighs an incredible 15.5 lbs less than the stock system, weighing in at only 5 lbs for the complete system and includes a lightweight aluminum exhaust hanger bracket as well as the M18 O2 Sensor Bung Plug.  That’s almost half the weight of the standard M4 Stainless Steel Full System!

The Titanium WORKS system also features optimized bends for maximum performance and better ground clearance than the standard stainless steel systems.

All M4 full system exhausts come with 18mm wide band O2 sensor bungs and also include reducers to fit 12mm narrow band O2 sensors such as the Yamaha R3 OEM sensor.

“M4 is already known for the exceptional performance of its standard R3 pipe. Now we are offering our racing customers an even better option with our full titanium “WORKS” system. Racers in lightweight classes are looking for every ounce of performance from their machines, so the M4 team decided to design and manufacture this trick exhaust….because we love racing!” -Kyle Martin, VP at M4 Performance Exhaust


M4 Exhaust full system dyno graph Yamaha R3

Additional information

Weight 1 lbs


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