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Exhaust systems are tuned for specific engines, to put torque at a specific RPM. This is all controlled by a combination of header pipe length and diameter, up to the collector point. The larger diameter pipes of a 1000 will have the effect of moving the optimum RPM for scavenging upwards, increasing upper end horsepower at the cost of lower end torque. This is the case with most aftermarket full systems. Given that the stock 1000 exhaust system relies on the SET valve to retain lower end torque to begin with, it could have a significant effect on a 750.
 

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I guess it should. Hard to say if the torque loss will be significant or not. There have been other people that have done this exhaust swap, and I guess it worked for them. Like Audi1031 said, the main benefit is weight reduction.
 

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Exhaust systems are tuned for specific engines, to put torque at a specific RPM. This is all controlled by a combination of header pipe length and diameter, up to the collector point. The larger diameter pipes of a 1000 will have the effect of moving the optimum RPM for scavenging upwards, increasing upper end horsepower at the cost of lower end torque. This is the case with most aftermarket full systems. Given that the stock 1000 exhaust system relies on the SET valve to retain lower end torque to begin with, it could have a significant effect on a 750.
Yeah^^^^ What he said... Besides that, I did it and I felt a loss of low end, enough to pull it and sell it. The weight savings of roughly 8lbs, isnt enough for me to keep it and lose the torque.
 
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