Hedman Headers: Hedman has earned its reputation as a quality exhaust headers manufacturer by being in the winner circle with World Champions like Big Daddy Don Garlits, Warren Johnson, Scott and Connie Kalitta, Richard Petty, and Frankie Kerr. Hedders were selected by the IROC Series as their header an amazing 21 consecutive years, and they are the only header ever to run on Bob Chandlers BigFoot Monster Trucks. knowledge they gain from racing goes into every Hedman product you choose.