Triumph Bonneville T100 and Thruxton High Flow Air Box Lid

Murray’s Triumph Bonneville T100 and Thruxton High Flow Air Box Lid gives your 790 or 865 a massive increase in air flow.  How massive?  About a 50% increase!  This Triumph air box lid is a simple bolt-on solution, but it will require a jetting change when using OEM Carbs.  If you want maximum performance, we suggest going with Murray’s Custom Tuned Carburetor Kit.