Has anyone actually bought the headers that IROC57 is selling?

Any performance difference for anyone with his or C_H_Cs headers on?

 

Technically yes I have ordered them and he has my CC # on hold but hasn't yet charged me. I am awiating him finishing the y-pipe and he is having that ceraimic coated for me as well as the headers- Still waiting patiently, takes some time for the coating I guess.