I wanted to try the 4-1 header but i never got it to fit properly.I made a mistake when building it (i forgot a support brace for the tranny) so i had to do it all over again.At that time i didn't feel like starting from scratch for the
3th time ,and Bisimoto's header was in a pre sale back then so...The choice was/has been made. Currently i'm starting to make my own silicone rubber reducer ,cause i can't find one that has the right dimensions for my TBIRA (Throttle body radius adaptor).I need it to fit onto my custom made intake tube .I have too much work that still needs to be done ,so i realllyy hope it stops freezing and snowing over here .