Originally Posted by
Taylorm
.. wrong..........four strokes need nothing but a straight pipe.......no expansion chamber needed...so there is a 100.00 item off your car/truck......
Where did I say Expansion chamber?
I said Baffle.
And Nitro RC 4 stroke motors need a baffle of some kind to slow down exhaust pulses. Unless you like roasting 20 dollar exhaust valves every 1/2 gallon.