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Getting rid of Big Radius pipes

I've tried a stage 1 map (bike has the stage 1 air intake installed), as well as a tweaked map..both seem to make things a little better, but the low end torque is still bad. Using a sert and no matter what, torque is bad.

I know it's not a fair comparison, but riding my buddy's Street Bob, there is tons of low end torque. I know for obvious reason his is going to have more low end power, but it made me realize just how much I've been missing off mine.

The only thing I can seem to pinpoint are the big radius pipes. I've read time and again how short drag pipes will make the low end suffer. I've thought about modifying the baffles but would rather not and to be honest I tend to like more traditional styled pipes better. Hence, why I'm really hoping these will be better.
 
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