I bought from Whiskey Bent Metal works the following: Outlet Diameter: 2.0 Inch Diameter Tip. SPARK ARRESTOR: Cone style spark arrestor screen SHIPPING: Shipping Within USA
MODEL MACHINE: 799cc Or Smaller Model Machine
SKU: XN-C-FRC-PRF1-2-0

This tip has allowed the exhaust to run cooler and doesn't increase the loudness of the 500 Ho Eps two up bike I have. It does backfire occasionally but nothing bad. I did this to cool down the right leg heat. I also bought another OEM exhaust shroud and cut it in half, flipped it upside down and installed it under the OEM mounted shroud to encase the pipe from the sensor on back to just before the bend near the fender. Used stainless steel 4 inch hose clamps to hold tight. The steel shroud around the sensor, was doubled up, meaning I bought another OEM shroud and pressed the two together and installed them both in the same stock location. Used high temp never seize on all the bolts and a stainless steel hose clamps around this one also to shunt any rattling. Temps much cooler for rider.