Briggs & Stratton "B91" Exhaust Silencer Carburetor but can be utilized on

but can be utilized on a variety of engines depending on the intended application and fitment need

This is one of the more unique exhaust pipe kits for the World Formula

Adjustable sizing depending on driver size and height

the VLR receives modest updates to iterate on a fundamental proven design

Briggs & Stratton "B91" Exhaust Silencer Carburetor but can be utilized onBriggs & Stratton Available in several variations: B91XL 1 5 16" OD pipe, and also fits 1 1 4" OD pipes when using a small shim. **This is the most common exhaust silencer option, and is used for the LO206!** B91 1 1 8" OD Fits 1 1 8" OD, and 1 1 16" OD exhaust pipes B91L 1" OD Fits 1" OD pipes, and 15 16" OD pipes B91MO Modified and "Open" engines, fits 1 5 16" piping. B91 Mini (Threaded) Ideal for Briggs Mini 91 XL Motor. Threaded Pipe End seals