I just recently got my SBP expansion chamber in. I have a 48cc Grubee Skyhawk. Before i was running the stock Black Cat muffler (held my motor back a ton aparently). The difference is amazing. I used to hit around 25mph(ish). Now Im hitting 35mph! I have a shift kit so that helps too, but this expansion chamber is amazing! It really pulled a lot more power out of my motor. I recommend this upgrade to anyone who wants to pull more power out of these motors and doesnt mind a bit more noise (sounds like a dirt bike, sort of).
I know this upgrade is kind of obvious and unoriginal, but Im just really pleased with it so I figured I would share haha.
-Brent
I know this upgrade is kind of obvious and unoriginal, but Im just really pleased with it so I figured I would share haha.
-Brent