ok quick question for you gentleman. have a buddy that will be running novarossi and trying to help him out.

best combo for power and fuel mileage in buggy and truggy.
thinking these combos possible
mantra in buggy with what header and pipe?

mita in truggy with what header and pipe

rolling in truggy with header and pipe combo?

roma .25 in truggy with header pipe combo?

also I get longer header more torque. so many headers 41005, 41019, 41020, 21021, 41027, 41029, 41030... which ones are most commonly used ?

what pipes do what? 9901 , 9853 , 2096 and 9886.. which is most used?

feel free to pm me if its easier. jeremy