I am thinking on installing a gude throttle body on my 93 EX Accord and was wondering if anyone knew if it's a direct bolt or will I need to modify it to fit? I have heard you have to grind out something to make it work??? Also any one like to add there $.02 on how much horsepower I will gain from this? I have a AEM CAI, full MSD, and custom 2.5" cat back. I also was wondering what brand of header people advise. And what kind of power can I expect from a header. Thanks