Originally Posted by
powerpig
Just bought a keep off 21-4 with 9901 pipe and 41021 manifold. Running on med size track, technical with turn into jumps,single doubles etc.. and one long 150 ft back raising straight. This combo was suggested by a top local racer. Now reading this form maybe a far better pipe combo??? Lhs hasn't put order in yet
This is a link to the off road novarossi thread.
http://www.rctech.net/forum/offroad-...hread-629.html