R/C Tech Forums - Sirio compare with RB

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xscape

08-18-2007 10:03 PM

Sirio compare with RB

How does the following 2 engine compare?
Sirio 2.1cc S12T3I-STI Engine & RB Speedline Matrix-RW

fatboy

08-20-2007 07:49 PM

Both engine from the same factory ( Sirio Based )

I had both and would prefer the Matrix with a MAx Pipe.

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