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ELI5: 2-1 vs 2-2 vs Slip ons? Why/how does it generate more power?

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Old 12-28-2015, 09:26 PM
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Default ELI5: 2-1 vs 2-2 vs Slip ons? Why/how does it generate more power?
Fairly new to motorcycling, just trying to wrap my head around why 2-1 exhaust is generally recommended over 2-2 and these are recommended over slip ons?
 
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Old 12-28-2015, 09:33 PM
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A full system in particular a 2-1 scavenge the exhaust better than just slip-ons or a 2-2.
 
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