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Discussion Starter · #1 ·
I ran into a gut at a stop light on a 2002 busa and he changed the dual exhaust to a single. (He said 4 into 1) What is the reason for this? :)
 

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LESS WEIGHT! not sure about the torque curve. Not questioning what IG said. I just dont know.

HAHA, btw I thought this was a crash story! "I ran into a guy at a stop light on a 2002 busa..."
 

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More sound and significant power gains depending on the system. Less weight as the stock system weighs close to 30 pounds. I think they are cooler with duals but that's just me.
 

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If done right the 4-1 exhaust can be tuned to give great power. They usually take power from the bottom end and stack it up top. It weights less too.
 

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Flash6R said:
LESS WEIGHT! not sure about the torque curve. Not questioning what IG said. I just dont know.

HAHA, btw I thought this was a crash story! "I ran into a guy at a stop light on a 2002 busa..."
i thought the same thing
 

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Discussion Starter · #9 ·
Thx everyone. :headbang I figured it would give more power. I didn't think about the weight difference.
 
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