LG Motorsports C5 1 7/8" Super Pro Headers LG Motorsports C5 1 7/8" Super Pro Headers LG Motorsports. The first in late model Corvette bolt on long tube header kits, are proud to bring you yet another header kit in our Super Pro line.This year we are introducing the 1 7/8" C5 Super Pro header... MSRP: Was: Now: $1,999.00 Choose Options