Pit Stop USA is The Online Motorsports Superstore! Pit Stop USA stocks Kirkey 20 Series "Big Boy" Economy Aluminum Racing Seat is designed for Oval Track - I.M.C.A Modifieds - Limited Late Models - Street Stocks - All Entry Level Classes Designed for the larger racer, this seat has all of the same features as our other economy seats plus some added features. Our most inexpensive seat has the same KIRKEY quality as our most expensive! . We feature Kirkey "Big Boy" Economy Seats at low everyday prices.