I really do not get at all the logic of saying that weapon r copied other headers. it is such a goofy statement. ANY headers made like mustang gt shorty headers are ALL similar and copied the original basic design of the factory headers with improvements. ALL 3.8 gm supercharged headers front wheel drive have the same basic design. Both the MSDS and Weapon R are copies of the OEM manufacturer headers WITH improvements in size and flow patterns. The whole argument about copy of one another makes NO SENSE!!!!!
