Has anyone tried to fit a hotshot header in a prelude body. One of friends has a h22 hatch, he had a dc header and replaced it with a hotshot header w/2.5 cat, 2.5 piping and a n1 exhaust. He said he felt such a huge gain from this header. I even took it out for a spin and past 5000 rpms the car just screams and keeps pulling so hard.

His other mods are:
custom cai
fpr

 

won't even come close to fitting...

 

would it make a difference if a/c and/or p/s are removed.