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Old 11-13-2007, 09:08 PM   #1
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Default Sirio .21 WCR vs. RB Xenon R

Could anyone give some insight on these two engines? I know they are both Sirio based, but what are the power differences, fuel mileage, durability, etc...

Thanks in advance.

-Steve
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Old 11-15-2007, 07:43 AM   #2
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Originally Posted by bsmooth View Post
Could anyone give some insight on these two engines? I know they are both Sirio based, but what are the power differences, fuel mileage, durability, etc...

Thanks in advance.

-Steve
Both of these engines feel similar on the racetrack. The Xenon R may have a slight edge in the torque department. Both get excellent fuel mileage. Both also work great with the 2013 pipe and header.
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Old 11-15-2007, 10:24 PM   #3
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..Thanks for the info!!
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