So, Now I'm confused... LET is making a set of headers that has the same design as the OEM and also the SuperSprint for the C320 ? WHY ? The design is the problem, that H pattern is what is robbing power...

If you're going to do some R&D and build some headers, create a equa-length outlet from each cylinder into a merge collector, these are called tuned headers that maintain equal back pressure on each cylinder and will help maximize HP gain... Otherwise, You are just re-packaging the OEM... Which actually are pretty good considering you are pushing exhaust gasses at high pressure into a tube at a 90 degree angle... Really bad idea !!!


What's the HP gain from SuperSprint ? 7HP ? WHOOPTIDOOO YAHOO !!!!

I think this will be some good reading for the interested parties and those attempting to manufacture / sell "High Performance" headers...

http://headerdesign.com/extras/design.asp
http://www.burnsstainless.com/TechAr...ry/theory.html