My '06 EC300 pulls strong to 9700 RPM with the stock GG pipe. That is excellent for a 300 in my book. The engine provides very linear power over a very broad range.
My '01 XC300 with a Doma pipe runs like my ’06 EC300 with the stock GG pipe – linear power with great top end power. My ’01 XC300 with a FMF Gnarly would not rev nearly as high or produce as much top end power.
For comparison, I ran the FMF and Doma pipes on the same hill with my ’01 XC300. The Gnarly pipe would pull the hill in 3rd gear with moderately high RPM while the Doma pipe would pull the hill screaming in 4th gear. That is a pretty substantial power difference to me. Both runs were in dry conditions with a trials tire so there was little wheelspin. With the Doma I didn’t notice any loss of low end power compared to the FMF, it was just more controllable.
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Eric K
'06 GasGas EC300
'01 GasGas XC300
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