R/C Tech Forums - Which is a better pipe for the 421B?

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Poppin Fresh

09-07-2008 09:40 PM

Which is a better pipe for the 421B?

I've had a really good show of performance with the 9853 pipe on it but I was kinda curious as to what a 9863 pipe would do? Anyone whose used the 9863 pipe, please feel free to chime in and thanks.

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