From NASCAR, Gerald Rinehart began to expand his business to include pipes for motorcycles.  Don Tilley of Tilley Harley-Davidson in Statesville conducted a test with one of Gerald's motorcycle exhaust designs and gained 12 horsepower.  Not long after that, Tripp Nobles set a time record in California, on Don Tilley's Buell racing bike running 'Rinehart Exhaust'.

Don Tilley decided to go Drag Racing in the AHDRA series.  This presented a new challenge because Don was racing the new V-Rod.  In years prior, very little had been done with the V-Rod from a performance aspect because of the brand new design.  In one year, Don Tilley and Tripp Nobles went from a stock bike to winning the National Championship and setting the ET and MPH records, to the world's fastest V-Rod.

Gene Lummus presently owns the world's fastest street legal Harley-Davidson.  Travis Lummus, a three time Street Pro Champion, has set ET and MPH records in AHDRA in the Street Pro division running 'Rinehart Racing Exhaust'.  This is unheard of due to the level of competition in this division!