All depends on which you need...
Low end? Here the king is the RB X12 pipe, couple it with a RB 1700-193 header and cut it to get about 97 - 101 milimeters long.
High end? Here are many ways to do, but mine experience is limited to Nova pipes. Mine preferred here is the Novarossi 51224 pipe, lots of mid and high end, specially suited for big tracks with long straights and open turns.
[quote=MugenDrew;2684554]BATTERIES are for FLASH LIGHTS, gasoline is for cleanin parts, alcohol is for me to drink and well NITRO...everybody know thats for racing.[/quote] :D:D:D