Description

EXO Stainless is a super durable exhaust and extremely quiet considering its short stature. Constructed of high-strength 304 stainless steel from front to back, EXO Stainless is sure to withstand even the most brutal of riding conditions and use. We took the original EXO Series and swapped out the aluminum muffler for a stainless muffler, replaced the aluminum base plate with a TIG-welded stainless steel plate and added a trick looking stamped stainless badge to top it off.

• Rugged high-strength 304 stainless steel muffler
• Hexagon shaped large diameter housing for more volume
• Internal sound wave altering technology for a deeper but tolerable exhaust tone
• Stamped 304 stainless steel coned inlet for more volume
• TIG welded reinforced muffler bracket(s)
• 304 stainless steel mid pipe
• Black powder coated stainless steel end tip
• Significant horsepower and torque gains
• Removable screen-type spark arrestor included
• Handmade in the USA
• 1 Year Limited Manufacturer’s Warranty

TUNING

Q: THIS IS THE FIRST TIME I HAVE PURCHASED AN AFTERMARKET EXHAUST. DO I NEED TO DO OR GET ANYTHING ELSE?

A: Yes, you need to properly tune your motor.

Q: WHY SHOULD I PROPERLY TUNE?

A: When you put an aftermarket higher-flowing exhaust on a vehicle, it throws off the current air/fuel mixture that the vehicle is setup from the factory with.

Q: WHY DOES THE AIR/FUEL MIXTURE CHANGE?

A: The aftermarket exhaust is designed to allow more airflow to pass by significantly less restricted than the stock muffler does. Also, generally the mid pipe and head pipes of most aftermarket systems are larger diameters than stock which allow for added airflow to pass through quicker. This changes the air/fuel mixture that is set up for the stock exhaust system.

Q: WHAT ARE THE IMPLICATIONS OF THIS AIR/FUEL MIXTURE CHANGE?

A: When the air/fuel mixture is changed, your motor will have a tendency to run lean. Running lean generally means that your motor is not getting enough fuel to balance out the added airflow and equates to your motor and exhaust system running at higher-than-normal temperatures.

Q: WHY IS RUNNING LEAN A BAD THING?

A: When a motor is running lean, it is not getting the ample amount of fuel that it needs to function at its best. This leads to increased overall exhaust and motor temperatures and also decreased overall performance. It is never a good idea to run a motor or our exhaust at higher-than-normal temperatures since it can lead to failures down the road.

Q: WHAT ARE THE SIGNS THAT MY MOTOR IS RUNNING LEAN?

A: Generally the tell-tale signs while riding are popping and backfiring, especially on deceleration. Hotter motor temperatures and a whitish firing end of your spark plug are also good indicators.

Q: WHAT DOES PROPER TUNING ENTAIL THEN?

A: When we refer to proper tuning, we are referring to adding enough fuel to compensate for the added airflow. In doing so, this will allow you to eliminate the lean issue and bring your motor back up to having a proper air/fuel mixture.

Q: DO I HAVE TO REMAP/TUNE EVEN IF I’M JUST BUYING A SLIP ON EXHAUST AND NOT A FULL SYSTEM?

A: Yes. The biggest increase of airflow will come from the less-restrictive aftermarket muffler(s) and not the head pipe(s). Given that, your motor will still run lean and requires proper tuning.

Q: I HEARD I DON’T NEED TO TUNE BECAUSE I HAVE AN O2 SENSOR WHICH SELF-ADJUSTS, RIGHT?

A: This is an incorrect assumption. Just because your stock exhaust system has an O2 sensor in it does not mean it is self tuning. The stock O2 sensor is an emissions compliant component that keeps the vehicle running at 14.7 AFR (which is lean) only during light engine load conditions. The O2 sensor makes the vehicle run lean during idle, low RPM and steady cruise. The O2 sensor does not function under engine load (acceleration & full throttle). By eliminating the O2 sensor, we are able to richen up the low end with our TFI Power Box and then fine tune the fueling for acceleration and full throttle now that the performance mods (exhaust) have been added. By eliminating the O2 sensor and correcting the fueling, the vehicle should run cooler, have improved low end torque and overall smoother drive-ability.

Q: I HAVE A FUEL INJECTED VEHICLE, WHAT DO I NEED TO DO?

A: You need to properly remap your fuel system in order to add fuel to compensate for the added airflow of the new exhaust.

Q: HOW DO I PROPERLY REMAP?

A: By using a fuel controller (aka programmer), you can remap and tune your motor.