Works on 3 engines: DuroMax XP16HPE 420cc, DuroMax XP18HPE 457cc also Predator Max 459cc
Made in U.S.A.
Material Type: mild steel. uncoated steel. (It is recommended that you apply high heat paint to avoid any future oxidation) Premium gasket included!
Pipe Diameter.
OD: 1.25"
ID: 1 1/8"
Need a compatible muffler? you can order this one separately...
https://www.ebay.com/itm/1-25-32mm-Slip-On-Motorcycle-Exhaust-Pipe-Silencer-Muffler-Dirt-Bike/133192959819?hash=item1f02eb474b:g:xLwAAOSwpbhd5GbZ
-Engine not included.
Remember this is not a Muffler, is loud!